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EM73880 の電気的特性と機能

EM73880のメーカーはELAN Microelectronics Corpです、この部品の機能は「4-BIT MICRO-CONTROLLER FOR LCD PRODUCT」です。


製品の詳細 ( Datasheet PDF )

部品番号 EM73880
部品説明 4-BIT MICRO-CONTROLLER FOR LCD PRODUCT
メーカ ELAN Microelectronics Corp
ロゴ ELAN Microelectronics Corp ロゴ 




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EM73880 Datasheet, EM73880 PDF,ピン配置, 機能
EM73880
4-BIT MICRO-CONTROLLER FOR LCD PRODUCT
Preliminary
GENERAL DESCRIPTION
EM73880 is an advanced single chip CMOS 4-bit micro-controller. It contains 8K-byte ROM, 244-nibble RAM,
4-bit ALU, 13-level subroutine nesting, 22-stage time base, two 12-bit timer/counters for the kernel function.
EM73880 also contains 6 interrupt sources, 1 input port, 2 bidirection ports, LCD display (32x4), and one high
speed timer/counter,sound generator, and speech synthesizer.
EM73880 has plentiful operating modes (SLOW, IDLE, STOP) intended to reduce the power consumption.
FEATURES
• Operation voltage : 2.4V to 3.6V.
• Clock source
: Dual clock system. Low-frequency oscillator (32.768 KHz) could be Crystal or RC
oscillator high-frequency oscillator is a built-in for 4.6 MHz.
• Instruction set
: 107 powerful instructions.
• Instruction cycle time : 1.7us for 4.6 MHz (high speed clock).
244 µs for 32768 Hz (low speed clock).
• ROM capacity
: 8192 X 8 bits.
• RAM capacity
: 244 X 4 bits.
• Input port
: 1 port (P0). P0(0..3) and IDLE releasing function are available by mask option.
• Bidirection port
: 2 ports (P4, P8). P4.1 is shared with HTC external input. P8(0..3) and IDLE releasing
function are available by mask option.
• 12-bit timer/counter : Two 12-bit timer/counters are programmable for timer, event counter and pulse width
measurement.
• High speed timer/counter : One 8-bit high speed timer/counters is programmable for auto load timer, melody
output and pulse width measurement.
• Speech synthesizer : 160K Speech ROM.
• Built-in time base counter : 22 stages.
• Subroutine nesting : Up to 13 levels.
• Interrupt
: External . . . . . 1 input interrupt sources.
Internal . . . . . . 2 Timer overflow interrupts, 1 time base interrupt.
1 high speed timer/counter overflow interrupt.
1 Speech ending interrupt.
• LCD driver
: 32 X 4 dots, 1/4,1/3,1/2, static 4 kinds of duty Type selectable, 1/2 bias, 1/3 bias, 2 kinds
bias Type selectable.
• Power saving function : SLOW, IDLE, STOP operation mode.
• Package type
: Chip form. . . . .63 pins.
APPLICATIONS
EM73880 is suitable for application in family applicance, consumer products, hand held games and the toy
controller.
* This specification are subject to be changed without notice.
11.30.2001 1

1 Page





EM73880 pdf, ピン配列
PIN DESCRIPTIONS
Symbol
P4.1/TRGH
Pin-type
I/O-Q
P4(2,3)
I/O-Q
P8.0/WAKEUPA,
I/O-S
P8.2/INT0/WAKEUPC
P8.1(TRGB)/WAKEUPB I/O-S
P8.3(TRGA)/WAKEUPD
BZ1, BZ2
VA,VB, V1, V2, V3
COM0~COM3
SEG0~SEG31
TEST
EM73880
4-BIT MICRO-CONTROLLER FOR LCD PRODUCT
Preliminary
Function
1-bit bidirection I/O port with HTC external input
mask option :
NMOS open-drain
PMOS open-drain
low current push-pull
normal current push-pull
high current push-pull
2-bit bidirection I/O port with high current source
mask option :
NMOS open-drain
PMOS open-drain
low current push-pull
normal current push-pull
high current push-pull
2-bit bidirection I/O port with external interrupt source input only
P8.2 and IDLE releasing function
mask option :
wakeup enable, low current push-pull
wakeup enable, normal current push-pull
wakeup disable, open-drain
wakeup disable, low current push-pull
wakeup disable, normal current push-pull
2-bit bidirection I/O port with time/counter A,B external input and IDLE
releasing function
mask option :
wakeup enable, low current push-pull
wakeup enable, normal current push-pull
wakeup disable, open-drain
wakeup disable, low current push-pull
wakeup disable, normal current push-pull
Speech output pin
Connect the capacitors for LCD bias voltage
LCD common output pins
LCD segment output pins
Tie Vss as package type, no connecting as COB type
FUNCTION DESCRIPTIONS
PROGRAM ROM (8K X 8 bits)
8 K x 8 bits program ROM contains user's program and some fixed data.
The basic structure of program ROM can be divided into 6 parts.
1. Address 000h: Reset start address.
2. Address 002h - 00Ch : 6 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 - 1FFFh : Except used as above function, the other region can be used as user's program region.
6. Address 1000h - 1FFFh : Fixed data stortage area.
* This specification are subject to be changed without notice.
11.30.2001 3


3Pages


EM73880 電子部品, 半導体
For example: LDA x ; AccRAM[x]
STA x ; RAM[x] Acc
EM73880
4-BIT MICRO-CONTROLLER FOR LCD PRODUCT
Preliminary
(3) Zero-page addressing mode
For zero-page region, user can using direct addressing to write or do any arithematic, comparsion or bit
manupulated operation directly.
For example: STD #k,y ; RAM[y] #k
ADD #k,y; RAM[y] RAM[y] + #k
PROGRAM COUNTER (8K ROM)
Program counter ( PC ) is composed by a 13-bit counter, which indicates the next executed address for the
instruction of program ROM.
For a 8K - byte size ROM, PC can indicate address form 0000h - 1FFFh, for BRANCH and CALL instrcutions,
PC is changed by instruction indicating.
(1) Branch instruction:
SBR a
Object code: 00aa aaaa
Condition: SF=1; PC PC 11-6.a ( branch condition satisified )
PC Hold original PC value+1 a a a a a a
SF=0; PCPC +1( branch condition not satisified)
PC Original PC value + 1
LBR a
Object code: 1100 aaaa aaaa aaaa
Condition: SF=1; PC a ( branch condition satisified)
PC a a a a a a a a a a a a
SF=0 ; PC PC + 2 ( branch condition not satisified )
PC Original PC value + 2
* This specification are subject to be changed without notice.
11.30.2001 6

6 Page



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部品番号部品説明メーカ
EM73880

4-BIT MICRO-CONTROLLER FOR LCD PRODUCT

ELAN Microelectronics Corp
ELAN Microelectronics Corp


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