User Manual

APLUS INTEGRATED CIRCUITS INC. APC5830
www.aplusinc.com.tw TEL : [phone]
8
z 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.
z 3FE9 : VOICE CHANNEL 0 HIGH BYTE. WRITE ONLY.
THE RESOLUTION OF VOICE CHANNEL 0 IS 12 BITS($3FE9,$3FE8 BIT7_4).
z 3FEA : BANK REGISTER FOR COPROCESSOR. WRITE ONLY.
z 3FEB : BANK REGISTER MSB BIT FOR COPROCESSOR. WRITE ONLY.
BANK REGISTER IS 9 BITS REGISTER($3FEB BIT0, $3FEA BIT7-0). THE MEMORY RANGE OF
BANK IS FROM $4000 TO $7FFF.
BIT 7-1 : RESERVED.
z 3FEC,3FED : TIMER A DATA OR TONE0 GENERATOR. READ AND WRITE. AFTER TIMER_A BE
ENABLED, THE TIMER WILL START TO COUNT DOWN. WHEN TIMER COUNTS TO ZERO, THE
TIMER WILL COUNT FROM THE INITIAL VALUE AND TIMER_A IRQ WILL BE HAPPEN.
THE TIME ELAPSE = (($3FED,$3FEC)+1) / (TIMER A INPUT CLOCK).
z 3FEE : TIMER B LOW BYTE DATA. READ AND WRITE.
z 3FEF : TIMER B HIGH BYTE DATA. READ AND WRITE.
AFTER TIMER_B BE ENABLED, THE TIMER WILL START TO COUNT DOWN. WHEN TIMER
COUNTS TO ZERO,THE TIMER WILL COUNT FROM THE INITIAL VALUE AND TIMER_B NMI WILL
BE HAPPEN.
THE TIME ELAPSE = (($3FEF,$3FEE)+1) / (TIMER B INPUT CLOCK).
z 3FF0 : PORT_A[15..8] 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.
z 3FF1 : PORT_A[15..8] DATA REGISTER. READ AND WRITE.
z 3FF2: PORT_B[11..8] DATA REGISTER. WRITE ONLY.
BIT 3-0: PORT_B PIN 11 TO PIN 8.
BIT 7-4 : RESERVED.