EM73963A Datasheet, PDF (2/38 Pages) ELAN Microelectronics Corp – 4-BIT MICRO-CONTROLLER FOR LCD PRODUCT

EM73963A
4-BIT MICRO-CONTROLLER FOR LCD PRODUCT
FUNCTION BLOCK DIAGRAM
RESET
CLK LXIN LXOUT
Reset
Control
Clock
Generator
Timing
Generator
Clock Mode
Control
System Control
Interrupt
Control
Instruction Decoder
Instruction Register
Time
Base
Timer/Counter
(TA,TB)
ROM
PC
Data pointer
ACC
ALU
Flag
ZCS
Stack pointer
Stack
RAM
HR LR
V1~V4
LCD Driver
SOUND GEN.
I/O Control
P0.0/WAKEUP0
P0.1/WAKEUP1
P0.2/WAKEUP2
P0.3/WAKEUP3
PIN DESCRIPTIONS
Symbol
Pin-type
Function
V_DD
V_SS
RESET
RESET-A
Power supply (+)
Power supply (-)
System reset input signal, low active
mask option :
none
pull-up
CLK
OSC-C
RC or external clock source connecting pin for high speed clock source.
LXIN
OSC-B/OSC-F Crystal/RC connecting pin for low speed clock source.
LXOUT
OSC-B/OSC-F Crystal/RC connecting pin for low speed clock source.
P0(0..3)/WAKEUP0..3 INPUT-B
P4.0/SOUND
I/O-O
P8.0(INT1)/WAKEUPA I/O-L
P8.2(INT0)/WAKEUPC
4-bit input port with IDLE/STOP releasing function
mask option :
wakeup enable, pull-up
wakeup enable, none
wakeup disable, pull-up
wakeup disable, pull-down
wakeup disable, none
1-bit bidirection I/O port or inverse sound effect output
mask option :
SOUND enable, push-pull, high current PMOS
SOUND disable, open-drain
SOUND disable, push-pull, high current PMOS
SOUND disable, push-pull, low current PMOS
2-bit bidirection I/O port with external interrupt sources input and IDLE
/STOP releasing function
mask option :
wakeup enable, push-pull
wakeup disable, push-pull
wakeup disable, open-drain
* This specification are subject to be changed without notice.
6.14.2001 2