APC5890 Просмотр технического описания (PDF) - APLUS INTEGRATED CIRCUITS

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APC5890

APC5890 DE-COMPRESSION VOICE IC

APLUS INTEGRATED CIRCUITS 

APLUS INTEGRATED CIRCUITS INC. APC5890

BIT - 1

=1 ENTRY SLEEP MODE. IN SLEEP MODE , THE BOTH OF MAIN

SYSTEM CLOCK AND 32768HZ WILL BESTOPPED, SO ALL

FUNCTION ARE STOPPED AND ONLY EXTERNAL INTERRUPT

CAN WAKE UP THIS CHIP

BIT – 3 ~ 2

00 : SYSTEM CLOCK = FXOSC/2 X 256(4.19MHZ)(DEFAULT).

01 : SYSTEM CLOCK = FXOSC/2 X 512(8.38MHZ)

10 : SYSTEM CLOCK = FXOSC/2 X 768(12.58MHZ)

BIT- 7 ~ 4

0XXX : FIX-TIMER DISABLE.

1000 : FIX-TIMER = 64HZ.

1001 : FIX-TIMER = 32HZ.

1010 : FIX-TIMER = 16HZ.

1011 : FIX-TIMER = 8HZ.

1100 : FIX-TIMER = 4HZ.

1101 : FIX-TIMER = 2HZ.

1110 : FIX-TIMER = 1HZ.

1111 : FIX-TIMER = 0.5HZ

3FE3 : PORT_A[7..0] INTERRUPT ENABLE REGISTER. WRITE ONLY.

AN ‘0’ IN THIS REGISTER WILL SET THE INTERRUPT FUNCTION OF THE CORRESPONDING PIN OF

PORT_A TO BE ENABLED. THE DEFAULT VALUE FOR EACH BIT IS ‘1’.

3FE4 : PORT_A[7..0] DATA REGISTER. READ AND WRITE.

3FE5 : PORT_A[7..0] DIRECTION REGISTER. WRITE ONLY.

AN ‘1’ IN THIS REGISTER WILL SET THE CORRESPONDING PIN OF PORT_A TO BE OUTPUT.

THE DEFAULT VALUE FOR EACH BIT IS ZERO.

3FE6: PORT_B[7..0] DATA REGISTER. WRITE ONLY.

3FE7 : CLEAR WATCHDOG TIMER. WRITE ONLY.

THE WATCHDOG TIMER RESET WILL HAPPEN IF THE PROGRAMMER DO NOT CLEAR THE

WATCHDOG TIMER BEFORE WATCHDOG TIMER TIME-OUT.

3FE8 VOICE CHANNEL 0 LOW BYTE. WRITE ONLY.

BIT 2-0 : RESERVED.

BIT 3: NO USE (MUST 0)

BIT 7-4: = VOICE CHANNEL 0 LOW NIBBLE BYTE.

3FE9 : VOICE CHANNEL 0 HIGH BYTE. WRITE ONLY.

THE RESOLUTION OF VOICE CHANNEL 0 IS 12 BITS($3FE9,$3FE8 BIT7_4).

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