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Номер произв STK88C2441
Описание Adpcm Voice Controller
Производители Syntec Semiconductor
логотип Syntec Semiconductor логотип 



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STK88C2441 Даташит, Описание, Даташиты
Syntek Semiconductor Co., Ltd.
STK88C2441
1. FEATURES
Specification
* Operating voltage : 2.5V - 5.5V.
* Maximum CPU operating frequency : 4,194,304Hz at 2.7V.
* Provide X’tal or RC oscillator. Both can run at high speed or slow speed(low power).
RC oscillator can detect internal or external resister automatically.
* Support 4M bytes program and data ROM. 256K bytes of them are built-in.
* Built in 128 bytes RAM.
* I/O port.
- 24 I/O pins.
- 8 of 24 pins with wake up function.
* Six 8-bit timers.
* Four channels for voice or melody processing.
* Two DACs for voice or melody playing. Also, internal programming for single DAC
playing.
* One pair of PWM for voice or melody playing.
* Eight interrupt sources :
NMI - Can be Watchdog Timer interrupt
IRQ0 - Timer 0 interrupt
IRQ1 - Timer 1 interrupt
IRQ2 - Timer 2 interrupt
IRQ3 - Timer 3 interrupt
wwwIRQ5 -
IRQ4 - Timer 4 interrupt
External interrupt
IRQ6 - Base Timer interrupt
IRQ7 - Timer 5 interrupt
.DataSheet4U.comVoice Controllerr
1/1
Issue Date : 27 March,2000









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STK88C2441 Даташит, Описание, Даташиты
Syntek Semiconductor Co., Ltd.
STK88C2441
2. PIN NAME ASSIGNMENT ( Total: 62 pads )
Pin Name
1) PA0~PA7
2) PB0~PB7
3) PC0~PC7
4) A0-A13
5) D0-D7
6) CEB
7) /EXTROM
8) DAC1
9) DAC2
10) PWM1
11) PWM2
12) VCOCAP
13) RXOSC
14) XOSC2
15) XR
16) RESB
17) TESTB
18) VDD
19) VDD(PWM)
20) GND
21) GND(PWM)
I/O Function description
I/O 8-bit I/O pins for port 1 with wake-up interrupt
I/O 8-bit I/O pins for port 2.
I/O 8-bit I/O pins for port 3. PC0-PC7 will changed to BANK0-
BANK7 output if bank number is less than $F0 or /DIROM=0.
O Address bus.
I/O Data bus.
O External ROM chip enable.
I =0 Disable internal ROM.
=1 Enable internal ROM if bank number is greater than $EF.
O Current output port
O Current output port
O Voltage output port
O Voltage output port
I/O PLL used.
I X’TAL or Ring osc pad
O X’TAL pad
I Bias input for RC oscillator.
I System reset pin; internal pull_high.
I Test pin; internal pull_high.
I Power
I Power for PWM module
I Ground
I Ground for PWM module
3. ADDRESS ARRANGEMENT
1) RAM
0000-007F for data storage.
0100-017F for stack and data area.. This area is overlapped with 0000-007F.
2) ROM
Max. 4M bytes for program and speech data area.
This area splits into 256 banks (0~255). There are 16k bytes for every bank. The
last 16 banks (240-255) are built-in. If /DIROM=1 and bank number is greater
than $EF, then internal ROM is read. If /DIROM=0 or bank number is less than
Voice Controllerr
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Issue Date : 27 March,2000









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STK88C2441 Даташит, Описание, Даташиты
Syntek Semiconductor Co., Ltd.
STK88C2441
$F0, then external ROM is read.
Internal ROM related address shows below:
BANK numberCPU address Internal ROM address
bank 240 11110000
8000-BFFF 00000-03FFF
bank 241 11110001
8000-BFFF 04000-07FFF
bank 242 11110010
8000-BFFF 08000-0BFFF
………………………………………………………………..…..
bank 255 11111111
8000-BFFF 3C000-3FFFF
(bank 255 11111111
C000-FFFF 3C000-3FFFF)
If RESET or IRQ or NMI or Bank address=FF, ROM address will indicate to 3C000-3FFFF.
FFFF, FFFE - IRQ vector.
FFFD, FFFC - RES vector.
FFFB, FFFA - NMI vector for watchdog interrupt.
4. Register description
(1) Read and Write
00C0 IRQ flag register. Read & write.
Read function :
Bit 0 :
= 1 Timer 0 flag, IRQ 0.
1 : = 1 Timer 1 flag, IRQ 1
2 : = 1 Timer 2 flag, IRQ 2.
3 : = 1 Timer 3 flag, IRQ 3.
4 : = 1 Timer 4 flag, IRQ 4.
5 : = 1 External flag, IRQ5.
6 : = 1 Base Timer flag, IRQ6
7 : = 1 Timer 5 flag, IRQ7.
Write function :
Bit 0 :
= 0 Clear timer 0 flag.
1 : = 0 Clear timer 1 flag.
2 : = 0 Clear timer 2 flag.
3 : = 0 Clear timer 3 flag.
4 : = 0 Clear timer 4 flag.
5 : = 0 Clear External flag.
6 : = 0 Clear Base Timer flag.
7 : = 0 Clear timer 5 flag..
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3/3
Issue Date : 27 March,2000










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