MC68HC908AP64
MC68HC908AP32
MC68HC908AP16
MC68HC908AP8
Data Sheet
M68HC08
Microcontrollers
MC68HC908AP64
Rev. 4
01/2007
freescale.com
MC68HC908AP64
MC68HC908AP32
MC68HC908AP16
MC68HC908AP8
Data Sheet
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the most current. Your printed copy may be an earlier revision. To verify you have the latest information
available, refer to:
http://www.freescale.com
The following revision history table summarizes changes contained in this document. For your
convenience, the page number designators have been linked to the appropriate location.
Freescale™ and the Freescale logo are trademarks of Freescale Semiconductor, Inc.
This product incorporates SuperFlash® technology licensed from SST.
© Freescale Semiconductor, Inc., 2005, 2007. All rights reserved.
MC68HC908AP Family Data Sheet, Rev. 4
Freescale Semiconductor
3
Revision History
Date
Revision
Level
Description
15.7.2 ADC Clock Control Register
— Changed “The ADC clock should
be set to between 500kHz and 2MHz” to “The ADC clock should be set
to between 500kHz and 1MHz”
Table 22-4 . DC Electrical Characteristics (5V)
— Updated V
OL
values.
August 2005
3
Table 22-6 . Oscillator Specifications (5V)
and
Table 22-10 . Oscillator
Specifications (3V)
— Corrected internal oscillator clock frequency,
f
ICLK
. Updated crystal oscillator component values C
L
, C
1
, C
2
, R
B
, and
R
S
.
Added MC68HC908AP16/AP8 information throughout.
October 2003
2.5
Section 10. Monitor ROM (MON)
— Corrected RAM address to $60.
Section 24. Electrical Specifications
— Added run and wait I
DD
data for
8MHz at 3V.
August 2003
2.4
Section 24. Electrical Specifications
— Updated stop I
DD
data.
Removed MC68HC908AP16 references throughout.
Table 1-2 . Pin Functions
— Added footnote for V
REG
.
5.3 Configuration Register 1 (CONFIG1)
— Clarified LVIPWRD and
LVIREGD bits.
July 2003
2.3
Section 8. Clock Generator Module (CGM), 8.7.2 Stop Mode
— Updated
BSC bit behavior.
10.5 ROM-Resident Routines
— Corrected data size limits and control
byte size for EE_READ and EE_WRITE.
Figure 12-2 . Timebase Control Register (TBCR)
— Corrected register
address.
Section 24. Electrical Specifications
— Updated.
Updated for f
NOM
= 125kHz and filter components
in CGM section.
Updated electricals.
Page
Number(s)
254
299
January 2007
4
301, 305
—
167
421
417, 421
—
30
67
125
168–193
207
415
101
415
May 2003
2.2
MC68HC908AP Family Data Sheet, Rev. 4
4
Freescale Semiconductor
List of Chapters
Chapter 1 General Description. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .19
Chapter 2 Memory . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .29
Chapter 3 Configuration & Mask Option Registers (CONFIG & MOR) . . . . . . . . . . . . . . . .49
Chapter 4 Central Processor Unit (CPU). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .55
Chapter 5 Oscillator (OSC) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .71
Chapter 6 Clock Generator Module (CGM) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .79
Chapter 7 System Integration Module (SIM) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .97
Chapter 8 Monitor ROM (MON) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .115
Chapter 9 Timer Interface Module (TIM) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .135
Chapter 10 Timebase Module (TBM) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .151
Chapter 11 Serial Communications Interface Module (SCI) . . . . . . . . . . . . . . . . . . . . . . .155
Chapter 12 Infrared Serial Communications Interface Module (IRSCI) . . . . . . . . . . . . . .181
Chapter 13 Serial Peripheral Interface Module (SPI) . . . . . . . . . . . . . . . . . . . . . . . . . . . . .209
Chapter 14 Multi-Master IIC Interface (MMIIC) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .229
Chapter 15 Analog-to-Digital Converter (ADC). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .247
Chapter 16 Input/Output (I/O) Ports. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .259
Chapter 17 External Interrupt (IRQ) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .271
Chapter 18 Keyboard Interrupt Module (KBI) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .277
Chapter 19 Computer Operating Properly (COP) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .283
Chapter 20 Low-Voltage Inhibit (LVI). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .287
Chapter 21 Break Module (BRK) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .291
Chapter 22 Electrical Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .297
Chapter 23 Mechanical Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .315
Chapter 24 Ordering Information. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .319
MC68HC908AP Family Data Sheet, Rev. 4
Freescale Semiconductor
5
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