Ordering number : ENN7937
LC863A48A, LC863A40A
LC863A32A, LC863A28A
LC863A24A, LC863A20A
LC863A16A
Overview
CMOS IC
FROM 48K/40K/32K/28K/24K/20K/16K-byte,
RAM 640-byte on chip and 352
×
9-bit OSD RAM
8-bit 1-chip Microcontroller
The LC863A48A/40A/32A/28A/24A/20A/16A are 8-bit single chip microcontrollers with the following on-chip
functional blocks :
•
CPU : Operable at a minimum bus cycle time of 0.424µs
•
On-chip ROM capacity
Program ROM : 48K/40K/32K/28K/24K/20K/16K bytes
CGROM : 16K bytes
•
On-chip RAM capacity : 640 bytes
•
OSD RAM : 352 × 9-bits
•
Closed-Caption TV controller and the on-screen display controller
•
Closed-Caption data slicer
•
Four channels × 6-bit AD Converter
•
Three channels × 7-bit PWM
•
Two channels × 16-bit timer/counter, 14-bit base timer
•
IIC-bus compliant serial interface circuit (Multi-master type)
•
ROM correction function
•
14-source 9-vectored interrupt system
•
Integrated system clock generator and display clock generator
Only one X’tal oscillator (32.768kHz) for PLL reference is used for both generators
TV control and the Closed Caption function
All of the above functions are fabricated on a single chip.
Ver.0.92
62102
73004 JO IM No.7937-1/17
LC863A48A/40A/32A/28A/24A/20A/16A
Features
■Read-Only
Memory (ROM)
: 49152 × 8-bits/40960 × 8-bits/32768 × 8-bits/
28672 × 8-bits/24576 × 8-bits/20480 × 8-bits/
16384 × 8-bits for program
16128 × 8-bits for CGROM
■Random
Access Memory (RAM) : 512 × 8-bits (working area)
128 × 8-bits (working or ROM correction function)
352 × 9-bits (for CRT display)
■OSD
functions
•
Screen display : 36 characters × 16 lines (by software)
•
RAM
: 352 words (9-bits per word)
Display area : 36 words × 8 lines
Control area : 8 words × 8 lines
•
Characters
Up to 252 kinds of 16 × 32 dot character fonts (4 characters including 1 test character are not programmable)
Each font can be divided into two parts and used as two fonts (Ex. 16 × 16 dot character font × 2)
At least 111 characters need to be divided between a 16 × 17 dot and 8 × 9 dot character font to display the
caption fonts.
•
Various character attributes
Character colors
: 16 colors (analog mode : l Vp-p output) /16 colors (digital mode)
Character background colors : 16 colors (analog mode : l Vp-p output) /16 colors (digital mode)
Fringe/shadow colors
: 16 colors (analog mode : l Vp-p output) /16 colors (digital mode)
Full screen colors
: 16 colors (analog mode : l Vp-p output) /16 colors (digital mode)
Rounding
Underline
Italic character (slanting)
•
Attribute can be changed without spacing
•
Vertical display start line number can be set for each row independently (Rows can be overlapped)
•
Horizontal display start position can be set for each row independently
•
Horizontal pitch (bit 9 to 16)
*1
and vertical pitch (bit 1 to 32) can be set for each row independently
•
Different display modes can be set for each row independently
Caption
•
Text mode/OSD mode 1/OSD mode 2 (Quarter size)/Simplified graphic mode
•
Ten character sizes
*1
Horez. × Vert. = (1 × 1), (1 × 2), (2 × 2), (2 × 4), (0.5 × 0.5)
(1.5 × 1), (1.5 × 2), (3 × 2), (3 × 4), (0.75 × 0.5)
•
Shuttering and scrolling on each row
•
Simplified Graphic Display
*1 Note : range depends on display mode : refer to the manual for details.
■Data
Slicer (closed caption format)
•
Closed caption data and XDS data extraction
•
NTSC/PAL, and extracted line can be specified
■Bus
Cycle Time/Instruction-Cycle Time
Bus cycle time
0.424µs
7.5µs
91.55µs
183.1µs
Instruction cycle time
0.848µs
15.0µs
183.1µs
366.2µs
Clock divider
1/2
1/2
1/1
1/2
System clock oscillation
Internal VCO
(Ref : X'tal 32.768kHz)
Internal RC
Crystal
Crystal
Oscillation Frequency
14.156MHz
800kHz
32.768kHz
32.768kHz
Voltage
4.5V to 5.5V
4.5V to 5.5V
4.5V to 5.5V
4.5V to 5.5V
■Ports
•
Input/Output Ports
: 4 ports (22 terminals)
Data direction programmable in nibble units
: 1 port (8 terminals)
(If the N-ch open drain output is selected by option, the corresponding port data can be read in output mode.)
Data direction programmable for each bit individually : 3 ports (14 terminals)
No.7937-2/17
LC863A48A/40A/32A/28A/24A/20A/16A
■AD
converter
•
4-channels × 6-bit AD converters
■Serial
interfaces
•
IIC-bus compliant serial interface (Multi-master type)
Consists of a single built-in circuit with two I/O channels. The two data lines and two clock lines can be connected
internally.
■PWM
output
•
3-channels × 7-bit PWM
■Timer
•
Timer 0 : 16-bit timer/counter
With 2-bit prescaler + 8-bit programmable prescaler
Mode 0 : Two 8-bit timers with a programmable prescaler
Mode 1 : 8-bit timer with a programmable prescaler + 8-bit counter
Mode 2 : 16-bit timer with a programmable prescaler
Mode 3 : 16-bit counter
The resolution of timer is 1 tCYC.
•
Timer 1 : 16-bit timer/ PWM
Mode 0 : Two 8-bit timers
Mode 1 : 8-bit timer + 8-bit PWM
Mode 2 : 16-bit timer
Mode 3 : A variable-bit PWM (9 to 16 bits)
In mode 0/1, the resolution of timer/PWM is 1 tCYC
In mode 2/3, the resolution of timer/PWM is selectable by program ; tCYC or 1/2 tCYC
•
Base timer
Generate every 500ms overflow for a clock application
(using 32.768kHz crystal oscillation for the base timer clock)
Generate every 976µs, 3.9ms, 15.6ms, 62.5ms overflow
(using 32.768kHz crystal oscillation for the base timer clock)
Clock for the base timer is selectable from 32.768kHz crystal oscillation, system clock or programmable prescaler
output of Timer 0
■Remote
control receiver circuit (connected to the P73/INT3/T0IN terminal)
•
Noise rejection function
•
Polarity switching
■Watchdog
timer
External RC circuit is required
Interrupt or system reset is activated when the timer overflows
■ROM
correction function
Max 128-bytes/2 addresses
■Interrupts
•
14 sources 9 vectored interrupts
1. External Interrupt INT0
2. External Interrupt INT1
3. External Interrupt INT2, Timer/counter T0L (Lower 8-bits)
4. External Interrupt INT3, base timer
5. Timer/counter T0H (Upper 8-bits)
6. Timer T1H, Timer T1L
7. Data slicer
8. Vertical synchronous signal interrupt (VS), horizontal line (HS)
9. IIC, Software
Continued on next page.
No.7937-3/17
LC863A48A/40A/32A/28A/24A/20A/16A
Continued from preceding page.
•
Interrupt priority control
Three interrupt priorities are supported (low, high and highest) and multi-level nesting is possible. Low or high
priority can be assigned to the interrupts from 3 to 9 listed above. For the external interrupt INT0 and INT1, low or
highest priority can be set.
■Sub-routine
stack level
•
A maximum of 128 levels (stack is built in the internal RAM)
■Multiplication/division
instruction
•
16-bits × 8-bits (7 instruction cycle times)
•
16-bits
÷
8-bits (7 instruction cycle times)
■3
oscillation circuits
•
Built-in RC oscillation circuit used for the system clock
•
Built-in VCO circuit used for the system clock and OSD
•
X’tal oscillation circuit used for base timer, system clock and PLL reference
■Standby
function
•
HALT mode
The HALT mode is used to reduce the power dissipation. In this operation mode, the program execution is stopped.
This mode can be released by the interrupt request or the system reset.
•
HOLD mode
The HOLD mode is used to stop the oscillations ; RC (internal), VCO, and X’tal oscillations. This mode can be
released by the following conditions.
1. Pull the reset terminal (RES) to low level.
2. Feed the selected level to either P70/INT0 or P71/INT1.
■Package
•
MFP36S
•
DIP36S
■Development
tools
•
Flash EEPROM
•
Evaluation chip
•
Emulator
: LC86F3A48A
: LC863096
: EVA86000 (main) + ECB863200A (evaluation chip board)
+ SUB863400A (sub board)
+ POD36-CABLE (cable)
+ POD36-DIP (for DIP36S)
or POD36-MFP (for MFP36S)
No.7937-4/17
LC863A48A/40A/32A/28A/24A/20A/16A
Package Dimensions
unit : mm
3204B
Package Dimensions
unit : mm
3170A
No.7937-5/17
聊聊、笑笑、闹闹
京公网安备 11010802033920号
Copyright © 2005-2026 EEWORLD.com.cn, Inc. All rights reserved
电子工程世界
