EM73P968
4-BIT MICRO-CONTROLLER FOR LCD PRODUCT
FUNCTION BLOCK DIAGRAM
XOUT XIN
LXIN
LXOUT
RESET
VDD
SPI
P15.0/P15.1/
WAKEUP
Sleep Mode
Control
Timing
Generator
Clock
Generator
Clock
Generator
(slow)
Reset
Control
System Control
Data pointer
ACC
Stack pointer
Instruction Decoder
Instruction Register
Interrupt
Control
Stack
RAM
ALU
Flag
C
Time
Base
ROM
Timer/Counter
(TA,TB)
Z
S
LR
HR
TEST
PC
P0/WAKEUP
V1
V2
V3
I/O Control
/WAKEUP
/WAKEUP
/WAKEUP
P2
P4
P5
LCD
VRLC
ADC
PIN DESCRIPTIONS
Symbol
Pin-type
Function
VDD
VSS
Power supply (+)
Power supply (-)
ADC power (+)
ADC power (+)
ADC power (-)
Vref
VAD
VADSS
RESET
RESET-A
System reset input signal, low active
mask option : none
pull-up
XIN/RCOSC
XOUT
LXIN
OSC-A/OSC-H1 Crystal/RC clock source connecting pin
OSC-A Crystal connecting pin
OSC-B/OSC-H2 Crystal/RC connecting pin for low speed clock source
LXOUT OSC-B
P0(0..3)/WAKEUP(0..3) INPUT-K
Crystal connecting pin for low speed clock source
4-bit input port with IDLE/STOP releasing function
P0.0/ACLK : address counter clock for programming OTP.
P0.1/PGMB : program data to OTP cells for programming OTP.
P0.2/OEB : data output enable for programming OTP.
P0.3/DCLK : data in/out clock signal for programming OTP.
mask option 1 :wakeup disable
wakeup enable
mask option 2 :low current pull up
normal current pull up
high current pull up
none
* This specification are subject to be changed without notice.
8.14.2001
2
ELAN [ ELAN MICROELECTRONICS CORP ]
