ASM12712C/17012C
DATA SHEET
6F-3 NO.7, LANE 75, TA-AN ROAD, SEC.1, TAIPEI, TAIWAN, R.O.C.
台北市大安路一段75巷7號6F-3
TEL:886-2-27818277 FAX:886-2-27815779
http://www.aplusinc.com.tw
ASM12712C/17012C
ASM12712C/17012C
– VERY LOW-COST VOICE SYNTHESIZER WITH 4-BIT
MICROPROCESSOR
1.0 General Description
The
ASM12712C/17012C
is very low cost voice synthesizer with 4-bit microprocessor. It has various
features
including 4-bit ALU, ROM, RAM, I/O ports, timers, clock generator, watchdog timer(WDT),
voicesynthesizer,
etc. It consists of 22 instructions in the device. With CMOS technology and halt
functioncan
minimize power dissipation. Its architecture is similar to RISC, with two stages of
instructionpipeline.
It allows all instructions to be executed in a single cycle, except for program
branches and
data table read instructions (which need two instruction cycles).
1.1 Feature
Single power supply can operate from 2.4V through 5V
Internal Program ROM: 4K x 10-bit
1 sets of 19-bit DPR can access up to 512K x 10 bits data memory space
Data Registers:
•
96 x 4-bit data RAM (00-1Fh plus 40h-7Fh)
•
Unbanked special function registers (SFR) range: 20h-3Fh
I/O Ports:
•
PRA: 4-bit I/O Port A (2Bh)
•
PRB: 4-bit Output Port B (2Dh)
•
PRC: 4-bit Input Port C (2Fh)
On-chip clock generator: Resistive Clock Drive(RM)
Timer: 1
•
Timer0: a 9-bit auto-reload timer/counter
Stack: 2-level subroutine nesting
HALT and Release from HALT function to reduce power consumption
Watch Dog Timer (WDT)
Instruction: 1-cycle instruction except for table read and program branches which are 2-cycles
Number of instruction: 22
1
ASM12712C/17012C
1.2 Pin-Out
ASM12712C/17012C
Pin-Out
VDD3
PRC1
PRC0/RESET
PRA3-1
PRA0/RESET
I
I
I
I/O
I/O
-
STI
Std./O.D.
STI
Std./O.D.
STI
Std./O.D.
STI
Std./O.D.
-
-
-
-
-
-
-
Std./O.D.
STI
Std./O.D.
-
Third Power supply during operation
Input port with programmable strong pull-low or weak pull-low or fix-input-
floating capability
Input port with programmable strong pull-low or weak pull-low or fix-input-
floating capability
Mask option selected as an external RESET pin with weak pull-low capability
I/O port with programmable strong pull-low or weak pull-low or fix-input-
floating capability
Output type with standard or Open-Drain output
I/O port with programmable strong pull-low or weak pull-low or fix-input-
floating capability
Output type with standard or Open-Drain output
Mask option selected as an external RESET pin with weak pull-low capability
RM mode Oscillator input
First Power supply during operation
Current Output of Audio
First Circuit Ground Potential
Second Circuit Ground Potential
Enter Test Mode. ( TEST = High )
Second Power supply during operation
Output type with standard or Open-Drain output
Input port with programmable strong pull-low or weak pull-low or fix-input-
floating capability
Third Circuit Ground Potential
OSC
VDD1
COUT
GND1
GND2
TEST
VDD2
PRB0-3
PRC2-3
GND3
I
I
O
I
I
O
I
O
I
I
1.3 Application circuit
4
Rev 1.0
MCU
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