EM73P361A
4-BIT MICRO-CONTROLLER FOR LCD PRODUCT
Symbol
Pin-type
Function
P4.1/WDT
I/O-D
1-bit bidirection I/O pin with watch-dog-timer output
mask option : open-drain
push-pull
In programming OTP mode:
P4.1/DOUT: data output for programming OTP
P4(2..3)/SEG(26..25)
P5(0..3)/SEG(24..21)
P6(0..3)/SEG(20..17)
P7(0..3)/SEG(16..13)
TONE
I/O-P
4-bit bidirection I/O ports are shared with LCD segment pins
mask option : segment enable, open-drain
segment disable, push-pull
segment disable, open-drain
Built-in tone generator output
VA, VB, VEE
COM0~COM2
Connect the capacitors for LCD bias voltage
LCD common output pins
SEG0~SEG12
LCD segment output pins
TEST
VPP
Internal pull down
Connect to VDD
In programming OTP mode:
High voltage power source for programming OTP
FUNCTION DESCRIPTIONS
PROGRAM ROM ( 3K X 8 bits )
3 K x 8 bits program ROM contains user's program and some fixed data .
The basic structure of program ROM can be divided into 4 parts.
1. Address 000h: Reset start address.
2. Address 002h - 00Ch: 4 kinds of interrupt service routine entry addresses .
3. Address 00Eh-086h : SCALL subroutine entry address, only available at 00Eh,016h,01Eh,026h, 02Eh,
036h, 03Eh, 046h, 04Eh, 056h, 05Eh, 066h, 06Eh, 076h ,07Eh, 086h .
4. Address 000h - 7FFh : LCALL subroutine entry address
5. Address 000h - BFFh : Except used as above function, the other region can be used as user's program region.
address
000h
002h
004h
006h
008h
00Ah
00Ch
00Eh
086h
3072 x 8 bits
Reset start address
INT0 ; External interrupt service toutine entry address
TRGA; Timer/counter A interrupt service routine entry address
TRGB; Timer/counter B interrupt service routine entry address
TBI; Time base interrupt service routine entry address
INT1; External interrupt service routine entry address
SCALL, subroutine call entry address
.
.
.
BFFh
* This specification are subject to be changed without notice.
12.17.2001
5
ELAN [ ELAN MICROELECTRONICS CORP ]
