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PDF EM73P361A Data sheet ( Hoja de datos )
| Número de pieza | EM73P361A | |
| Descripción | 4-BIT MICRO-CONTROLLER FOR LCD PRODUCT | |
| Fabricantes | ELAN Microelectronics Corp | |
| Logotipo |  |
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EM73P361A
4-BIT MICRO-CONTROLLER FOR LCD PRODUCT
GENERAL DESCRIPTION
EM73P361A is an advanced single chip CMOS 4-bit one-time programming (OTP) micro-controller. It contains
3K-byte OTP ROM, 52-nibble RAM, 4-bit ALU, 13-level subroutine nesting, 22-stage time base, two 12-bit timer/
counters for the kernel function. EM73P361A also contains 5 interrupt sources, 1 input port, 4 bidirection I/O ports,
built-in watch-dog-timer counter, tone generator and LCD driver (27x3 to 13x3).
Except low-power consumption and high speed, EM73P361A also have a sleep mode operation for power saving.
FEATURES
• Operation voltage
: 2.4V to 3.6V(clock frequency : 32K Hz).
• Clock source
: Single clock system for crystal, connect a external resistor or external clock
source available by mask option.
• Instruction set
: 109 powerful instructions.
• Instruction cycle time : 122µs for 32K Hz.
• OTP ROM capacity : 3072 x 8 bits.
• RAM capacity
: 52 x 4 bits.
• Input port
: 1 port (P0)(Pull-up and pull-down resistor with wakeup function available by
mask option).
• Bidirection port
: 4 ports (P4, P5, P6, P7) are available by mask option. (each I/O pin is push-pull
and open-drain available by mask option) P4.0 is high current pin (P4.0 and
TONE available by mask option). P4.2~P4.3, P5, P6 and P7 are shared with
SEG26-SEG13 by mask option.
• 12-bit timer/counter
: Two 12-bit timer/counters are programmable for timer mode.
• Low voltage reset (LVR) : Reset at 2.2V, and reset release at 2.4V.
• Tone generator
: There is a built-in tone generator.
• Built-in time base counter : 22 stages.
• Subroutine nesting
: Up to 13 levels.
• Interrupt
: External . . . . . 2 External interrupt (INT0, INT1).
Internal . . . . . . 2 Timer overflow interrupts.
1 Time base interrupt.
• LCD driver
: 27 X 3 to 13 X 3 dots available by mask option. Capacitor divider and resistor
divider are available by mask option.1/3, 1/2 and static three kinds of duty (1/2
bias) selectable. The programming method of LCD driver is I/O mapping.
• Built-in watch-dog-timer : The WDT is enabled or disabled by mask option.
• Power saving function : Sleep mode and Hold mode.
• Package type
: EM73P361AH
Chip form 47 pins.
EM73P361AAQ
QFP
100 pins.
APPLICATIONS
EM73P361A is suitable for application in family appliance, consumer products, hand held games and the toy
controller.
* This specification are subject to be changed without notice.
12.17.2001 1
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EM73P361A
4-BIT MICRO-CONTROLLER FOR LCD PRODUCT
Symbol
P4.1/WDT
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
VA, VB, VEE
COM0~COM2
SEG0~SEG12
TEST
VPP
Pin-type
I/O-D
I/O-P
Function
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
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
Connect the capacitors for LCD bias voltage
LCD common output pins
LCD segment output pins
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
...
BFFh
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
* This specification are subject to be changed without notice.
12.17.2001 5
5 Page 
EM73P361A
4-BIT MICRO-CONTROLLER FOR LCD PRODUCT
be "0", it means a borrow out, otherwise, if the result is positive, CF will be "1". For ZF, if the result
of subtraction operation is "0", the ZF will be "1", otherwise, ZF will be "1".
EXAMPLE:
Operation
8-4=4
7-F= -8(1000)
9-9=0
(3) Rotation:
Carry
1
0
1
Zero
0
0
1
There are two kinds of rotation operation, one is rotation left, the other is rotation right.
RLCA instruction rotates Acc value to left, shift the CF value into the LSB bit of Acc and the shift out data
will be hold in CF.
MSB LSB
ACC
CF
RRCA instruction operation rotates Acc value to right, shift the CF value into the MSB bit of Acc and the
shift out data will be hold in CF.
MSB LSB
ACC
CF
PROGRAM EXAMPLE: To rotate Acc right and shift a "1" into the MSB bit of Acc .
TTCFS; CF ← 1
RRCA; rotate Acc right and shift CF=1 into MSB.
HL REGISTER
HL register are two 4-bit registers, they are used as a pair of pointer for the address of RAM memory and also
2 independent temporary 4-bit data registers. For some instruction, L register can be a pointer to indicate the
pin number ( Port4, Port6, Port7 ) .
HL REGISTER STRUCTURE
3210 3210
H REGISTER L REGISTER
HL REGISTER FUNCTION
(1) For instruction : LDL #k, LDH #k, THA, THL, INCL, DECL, EXAL, EXAH, HL register used as a
temporary register .
PROGRAM EXAMPLE: Load immediate data "5h" into L register, "Dh" into H register.
LDL #05h;
LDH #0Dh;
(2) For instruction LDAM, STAM, STAMI .., HL register used as a pointer for the address of RAM memory.
* This specification are subject to be changed without notice.
12.17.2001 11
11 Page | ||
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