Si1000/1/2/3/4/5
Ultra Low Power, 64/32 kB, 10-Bit ADC
MCU with Integrated 240–960 MHz EZRadioPRO
®
Transceiver
Ultra Low Power: 0.9 to 3.6 V Operation
-
Typical sleep mode current < 0.1 µA; retains state and
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-
-
-
EZRadioPRO
®
Transceiver
-
-
-
-
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Frequency range = 240–960 MHz
Sensitivity = –121 dBm
FSK, GFSK, and OOK modulation
Max output power = +20 dBm (Si1000/1), +13 dBm
(Si1002/3/4/5)
RF power consumption
-
18.5 mA receive
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18 mA @ +1 dBm transmit
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30 mA @ +13 dBm transmit
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85 mA @ +20 dBm transmit
Data rate = 0.123 to 256 kbps
Auto-frequency calibration (AFC)
Antenna diversity and transmit/receive switch control
Programmable packet handler
TX and RX 64 byte FIFOs
Frequency hopping capability
On-chip crystal tuning
RAM contents over full supply range; fast wakeup of < 2 µs
Less than 600 nA with RTC running
Less than 1 µA with RTC running and radio state retained
On-chip dc-dc converter allows operation down to 0.9 V.
Two built-in brown-out detectors cover sleep and active
modes
10-Bit Analog to Digital Converter
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Up to 300 ksps
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Up to 18 external inputs
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External pin or internal VREF (no external capacitor
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-
-
required)
Built-in temperature sensor
External conversion start input option
Autonomous burst mode with 16-bit automatic averaging
accumulator
Dual Comparators
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Programmable hysteresis and response time
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Configurable as interrupt or reset source
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Low current (< 0.5 µA)
On-Chip Debug
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On-chip debug circuitry facilitates full-speed, non-intrusive
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High-Speed 8051 µC Core
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Pipelined instruction architecture; executes 70% of instruc-
tions in 1 or 2 system clocks
in-system debug (No emulator required)
Provides breakpoints, single stepping
Inspect/modify memory and registers
Complete development kit
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-
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Digital Peripherals
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19 or 16 port I/O plus 3 GPIO pins; Hardware enhanced
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UART, SPI, and I
2
C serial ports available concurrently
Low power 32-bit SmaRTClock
Four general purpose 16-bit counter/timers; six channel
programmable counter array (PCA)
Clock Sources
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Precision internal oscillators: 24.5 MHz with ±2% accuracy
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-
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Up to
25 MIPS
throughput with 25 MHz clock
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Expanded interrupt handler
Memory
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4352 bytes internal data RAM (256 + 4096)
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64 kB (Si1000/2/4) or 32 kB (Si1001/3/5) flash; In-system
programmable in 1024-byte sectors—1024 bytes are
reserved in the 64 kB devices
supports UART operation; spread-spectrum mode for
reduced EMI; Low power 20 MHz internal oscillator
External oscillator: Crystal, RC, C, CMOS clock
SmaRTClock oscillator: 32.768 kHz crystal or self-oscillate
Can switch between clock sources on-the-fly; useful in
implementing various power saving modes
Package
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42-pin QFN (5 x 7 mm)
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42-pin LGA (5 x 7 mm)
Temperature Range: –40 to +85 °C
ANALOG
PERIPHERALS
A
M
U
X
DIGITAL I/O
UART
SMBus
SPI
PCA
Timer 0
Timer 1
Timer 2
Timer 3
CRC
Port 0
CROSSBAR
EZRadio
PRO
Serial
Interface
Port 1
Port 2
EZRadioPRO
(240–960 MHz)
LNA
10-bit
300 ksps
ADC
+
IREF
+
–
PA
TEMP
SENSOR
VREF
VREG
–
Mixer
PGA
ADC
VOLTAGE
COMPARATORS
24.5 MHz PRECISION
INTERNAL OSCILLATOR
External Oscillator
20 MHz LOW POWER
INTERNAL OSCILLATOR
HARDWARE smaRTClock
Digital
Modem
Delta
Sigma
Modulator
Digital
Logic
PLL
HIGH-SPEED CONTROLLER CORE
64/32 kB
ISP FLASH
FLEXIBLE
INTERRUPTS
8051 CPU
(25 MIPS)
DEBUG
CIRCUITRY
4352 B
SRAM
POR
WDT
OSC
Rev. 1.2 11/12
Copyright © 2012 by Silicon Laboratories
Si1000/1/2/3/4/5
Si1000/1/2/3/4/5
2
Rev. 1.2
Si1000/1/2/3/4/5
Table of Contents
1. System Overview ..................................................................................................... 16
1.1. Typical Connection Diagram ............................................................................. 20
1.2. CIP-51™ Microcontroller Core .......................................................................... 21
1.3. Port Input/Output ............................................................................................... 22
1.4. Serial Ports ........................................................................................................ 23
1.5. Programmable Counter Array............................................................................ 23
1.6. 10-bit SAR ADC with 16-bit Auto-Averaging Accumulator
and Autonomous Low Power Burst Mode ........................................................ 24
1.7. Programmable Current Reference (IREF0)....................................................... 25
1.8. Comparators...................................................................................................... 25
2. Ordering Information ............................................................................................... 27
3. Pinout and Package Definitions ............................................................................. 28
4. Electrical Characteristics ........................................................................................ 47
4.1. Absolute Maximum Specifications..................................................................... 47
4.2. MCU Electrical Characteristics .......................................................................... 48
4.3. EZRadioPRO
®
Electrical Characteristics .......................................................... 73
4.4. Definition of Test Conditions for the EZRadioPRO Peripheral .......................... 80
5. 10-Bit SAR ADC with 16-bit Auto-Averaging Accumulator
and Autonomous Low Power Burst Mode............................................................ 81
5.1. Output Code Formatting .................................................................................... 81
5.2. Modes of Operation ........................................................................................... 83
5.3. 8-Bit Mode ......................................................................................................... 88
5.4. Programmable Window Detector....................................................................... 95
5.5. ADC0 Analog Multiplexer .................................................................................. 98
5.6. Temperature Sensor........................................................................................ 100
5.7. Voltage and Ground Reference Options ......................................................... 103
5.8. External Voltage References........................................................................... 104
5.9. Internal Voltage References ............................................................................ 104
5.10. Analog Ground Reference............................................................................. 104
5.11. Temperature Sensor Enable ......................................................................... 104
5.12. Voltage Reference Electrical Specifications .................................................. 105
6. Programmable Current Reference (IREF0).......................................................... 106
6.1. IREF0 Specifications ....................................................................................... 106
7. Comparators........................................................................................................... 107
7.1. Comparator Inputs........................................................................................... 107
7.2. Comparator Outputs ........................................................................................ 108
7.3. Comparator Response Time ........................................................................... 109
7.4. Comparator Hysteresis.................................................................................... 109
7.5. Comparator Register Descriptions .................................................................. 110
7.6. Comparator0 and Comparator1 Analog Multiplexers ...................................... 114
8. CIP-51 Microcontroller........................................................................................... 117
8.1. Performance .................................................................................................... 117
8.2. Programming and Debugging Support ............................................................ 118
Rev. 1.2
3
Si1000/1/2/3/4/5
8.3. Instruction Set.................................................................................................. 118
8.4. CIP-51 Register Descriptions .......................................................................... 123
9. Memory Organization ............................................................................................ 126
9.1. Program Memory............................................................................................. 127
9.2. Data Memory ................................................................................................... 127
10. On-Chip XRAM ..................................................................................................... 129
10.1. Accessing XRAM........................................................................................... 129
10.2. Special Function Registers............................................................................ 130
11. Special Function Registers................................................................................. 131
11.1. SFR Paging ................................................................................................... 132
12. Interrupt Handler.................................................................................................. 137
12.1. Enabling Interrupt Sources ............................................................................ 137
12.2. MCU Interrupt Sources and Vectors.............................................................. 137
12.3. Interrupt Priorities .......................................................................................... 138
12.4. Interrupt Latency............................................................................................ 138
12.5. Interrupt Register Descriptions ...................................................................... 140
12.6. External Interrupts INT0 and INT1................................................................. 147
13. Flash Memory....................................................................................................... 149
13.1. Programming The Flash Memory .................................................................. 149
13.2. Non-volatile Data Storage ............................................................................. 151
13.3. Security Options ............................................................................................ 151
13.4. Determining the Device Part Number at Run Time ....................................... 153
13.5. Flash Write and Erase Guidelines ................................................................. 153
13.6. Minimizing Flash Read Current ..................................................................... 155
14. Power Management ............................................................................................. 159
14.1. Normal Mode ................................................................................................. 160
14.2. Idle Mode....................................................................................................... 161
14.3. Stop Mode ..................................................................................................... 161
14.4. Suspend Mode .............................................................................................. 162
14.5. Sleep Mode ................................................................................................... 162
14.6. Configuring Wakeup Sources........................................................................ 163
14.7. Determining the Event that Caused the Last Wakeup................................... 163
14.8. Power Management Specifications ............................................................... 165
15. Cyclic Redundancy Check Unit (CRC0)............................................................. 166
15.1. 16-bit CRC Algorithm..................................................................................... 166
15.2. 32-bit CRC Algorithm..................................................................................... 168
15.3. Preparing for a CRC Calculation ................................................................... 170
15.4. Performing a CRC Calculation ...................................................................... 170
15.5. Accessing the CRC0 Result .......................................................................... 170
15.6. CRC0 Bit Reverse Feature............................................................................ 174
16. On-Chip DC-DC Converter (DC0)........................................................................ 175
16.1. Startup Behavior............................................................................................ 176
16.2.
High Power Applications ............................................................................ 177
16.3. Pulse Skipping Mode..................................................................................... 177
16.4. Enabling the DC-DC Converter ..................................................................... 177
4
Rev. 1.2
Si1000/1/2/3/4/5
16.5. Minimizing Power Supply Noise .................................................................... 179
16.6. Selecting the Optimum Switch Size............................................................... 179
16.7. DC-DC Converter Clocking Options .............................................................. 179
16.8. DC-DC Converter Behavior in Sleep Mode ................................................... 180
16.9. DC-DC Converter Register Descriptions ....................................................... 181
16.10. DC-DC Converter Specifications ................................................................. 183
17. Voltage Regulator (VREG0)................................................................................. 184
17.1. Voltage Regulator Electrical Specifications ................................................... 184
18. Reset Sources ...................................................................................................... 185
18.1. Power-On (VBAT Supply Monitor) Reset ...................................................... 186
18.2. Power-Fail (VDD_MCU Supply Monitor) Reset............................................. 187
18.3. External Reset ............................................................................................... 189
18.4. Missing Clock Detector Reset ....................................................................... 189
18.5. Comparator0 Reset ....................................................................................... 190
18.6. PCA Watchdog Timer Reset ......................................................................... 190
18.7. Flash Error Reset .......................................................................................... 190
18.8. SmaRTClock (Real Time Clock) Reset ......................................................... 190
18.9. Software Reset .............................................................................................. 190
19. Clocking Sources................................................................................................. 192
19.1. Programmable Precision Internal Oscillator .................................................. 193
19.2. Low Power Internal Oscillator........................................................................ 193
19.3. External Oscillator Drive Circuit..................................................................... 193
19.4. Special Function Registers for Selecting and
Configuring the System Clock ....................................................................... 197
20. SmaRTClock (Real Time Clock).......................................................................... 200
20.1. SmaRTClock Interface .................................................................................. 200
20.2. SmaRTClock Clocking Sources .................................................................... 207
20.3. SmaRTClock Timer and Alarm Function ....................................................... 211
21. Port Input/Output ................................................................................................. 217
21.1. Port I/O Modes of Operation.......................................................................... 218
21.2. Assigning Port I/O Pins to Analog and Digital Functions............................... 219
21.3. Priority Crossbar Decoder ............................................................................. 221
21.4. Port Match ..................................................................................................... 226
21.5. Special Function Registers for Accessing and Configuring Port I/O ............. 229
22. EZRadioPRO
®
Serial Interface (SPI1) ................................................................ 238
22.1. Signal Descriptions........................................................................................ 239
22.2. SPI Master Operation on the MCU Core Side............................................... 239
22.3. SPI Slave Operation on the EZRadioPRO Peripheral Side........................... 239
22.4. EZRadioPRO Serial Interface Interrupt Sources ........................................... 242
22.5. Serial Clock Phase and Polarity .................................................................... 242
22.6. SPI Special Function Registers ..................................................................... 243
23. EZRadioPRO
®
240–960 MHz Transceiver.......................................................... 249
23.1. EZRadioPRO Operating Modes .................................................................... 250
23.2. Interrupts ...................................................................................................... 253
23.3. System Timing............................................................................................... 254
Rev. 1.2
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