APLUS ASM12712C-1

A
PLUS MAKE YOUR PRODUCTION A-PLUS
ASM12712C
DATA SHEET
APLUS
INTEGRATED CIRCUITS INC.
Address:
3 F-10, No. 32, Sec. 1, Chenggung Rd., Taipei,
Taiwan 115, R.O.C.
(115)台北市南港區成功路㆒段 32 號 3 樓之 10.
Sales E-mail: Mr. Jason
[email protected]
TEL: 886-2-2782-9266
Technology E-mail: Mr. George
[email protected]
FAX: 886-2-2782-9255
WEBSITE : http: //www.aplusinc.com.tw
ASM12712C
ASM12712C – VERY LOW-COST VOICE SYNTHESIZER WITH 4-BIT MICROPROCESSOR
1.0 General Description
The ASM12712C 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), voice
synthesizer, etc. It consists of 22 instructions in the device. With CMOS technology and halt function
can minimize power dissipation. Its architecture is similar to RISC, with two stages of instruction
pipeline. 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
The Voice function can be implemented by microprocessor instruction
•
One 8-bit COUT output for ASMxxxxx
1
ASM12712C
FIGURE 1.1 : Block Diagram of ASM12712C
Data Bus[3:0]
ROM Latch
PCLATCH(8)
PCL(4)
Stack(12)
PC[11:0]
(ADDR[18:12])
=0000000b
(2-Level)
ADDR[18:0]
0 ROM_ADDR[18:0]
Instruction Bus [9:0]
1
DPR3,2,1
Instruction
Latch
Program
(Data)
ROM
DPR[18:0]
Instruction
Decoder
Control Signal
DLATCH(10)
ROM_Data[9:0]
Data Bus[3:0]
Instruction Bus [9:0]
Accumlator(4)
SRAM
ALU(4)
Immediate(4)
(96 x 4)
Instruction Bus [9:0]
PCH(8)
PRA(4)
PRB(4)
PRC(4)
Timer0(9)
00h-1Fh
40h-7Fh
Register(4)
enter test mode
One-Channel
( Voice synthesizer )
Reset Chip
Reset Chip
Clock Generator
VDD/GND
Power on Reset
RESET pin
COUT
OSC
Test select
COUT
2
PRA0
P1,P2,P3,P4
weak or strong
pull-low for PRA,
PRB, PRC
PRASL(4)
ASM12712C
FIGURE 1.2 : External ROM Map of ASM12712C
PC[11:0]
12bit x 2 STACK
19-bit Data Pointer
Reset Vector
00000h
00080h
Reserved for Testing
00080h-003FFh
00400h
Program and data ROM
00000h-00FFFh
00FFFh(4K)
Data ROM
00000h-7FFFFh
7FFFFh(512Kx10-bits)
3
ASM12712C
1.2 Pin-Out
ASM12712C Pin-Out
VDD3
PRC1
I
I
PRC0/RESET
I
STI
Std./O.D.
STI
Std./O.D.
PRA3-1
I/O
STI
Std./O.D.
PRA0/RESET
I/O
STI
Std./O.D.
OSC
VDD1
COUT
GND1
GND2
TEST
VDD2
PRB0-3
PRC2-3
I
I
O
I
I
O
I
O
I
GND3
I
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-inputfloating capability
Input port with programmable strong pull-low or weak pull-low or fix-inputfloating 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-inputfloating capability
Output type with standard or Open-Drain output
I/O port with programmable strong pull-low or weak pull-low or fix-inputfloating 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-inputfloating capability
Third Circuit Ground Potential
1.3 Application circuit
4
ASM12712C
1.4 Bonding Diagram
(256K x 10 bit) x 2-B lock R O M
ASM12712C
Y= 3140 + 100 (um)
C H IP SIZE: X= 309 0 + 100 (u m), Y = 314 0 + 100 (u m)
1
2
3
4
5
6
7
8
9
10
11 12
13
14
15 16 17 18 19 20 21
X= 3090 + 100 (um)
ASM12712C Pad Location
PAD# PAD Name
1
2
3
4
5
6
7
8
9
10
11
VDD3
RC_PAD[1]
RC_PAD[0]
RA_PAD[3]
RA_PAD[2]
RA_PAD[1]
RA_PAD[0]/RESET
AOSC_PAD
VDD1
ACOUT
GND1
Chip Size: X= 3090 + 100 (um) , Y= 3140 + 100 (um)
PAD # PAD Name
X
Y
X
Y
-1445.96
-1325.24
-1202.92
-1080.6
-958.28
-835.96
-713.64
-591.32
-414.36
-162.24
38.72
-1456.08
-1456.08
-1456.08
-1456.08
-1456.08
-1456.08
-1456.08
-1456.08
-1456.08
-1456.08
-1450.56
5
12
13
14
15
16
17
18
19
20
21
GND2
TEST_PAD
VDD2
RB[0]
RB[1]
RB[2]
RB[3]
RC_PAD[2]
RC_PAD[3]
GND3
118.72
319.68
575.32
714.48
836.8
959.12
1081.44
1203.76
1326.08
1449.36
-1450.56
-1456.08
-1456.08
-1456.08
-1456.08
-1456.08
-1456.08
-1456.08
-1456.08
-1456.08
ASM12712C
1.5 DC Characteristics for ASMXXXX
SYMBOL
PARAMETER
OPERATING
VOLTAGE
VDD
Isb
SUPPLY
CURREN
T
Iop
VDD MIN. TYP. MAX. UNIT
2.4
STANDBY
OPERATING
INPUT CURRENT
/Internal pull low
Iih
OUTPUT HIGH
CURRENT
OUTPUT LOW
CURRENT
Ioh
Iol
3
3
5
3
5
3
5
2
7
3
9
5
-5.2
3
5
3
5
-3
-8
7
20
5
V
1
1
uA
CONDITION
depending on Freq.
4MHz, RM
in HALT Mode
4MHz, RM
IO Floating
4MHz, RM
in HALT Mode
(IO Ports with
weak pull-high
pull-low)
mA
uA
4MHz, RM
(IO ports)
mA
dF/F
FREQUENCY
STABILITY
-10
10
%
dF/F
Fosc VARIATION
-20
20
%
Fosc(3v)Fosc(2.4v)
Fosc (3v)
VDD=3V,
Rosc=740k, 4MHz
FIGURE 1.3 : Frequency Range for Rosc in RM mode
Resistor(k ohm)
3v Freq.(MHz)
1200
1000
820
470
2.47
3.04
3.31
6.25
Rosc & Freq.
Freq. MHz
8
6.25
6
4
3.31
3.04
2
2.47
0
0
200
400
600
800
Rosc k ohm
6
1000
1200
1400