PixArt Imaging Inc.

PAC107

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17

PixArt Imaging Inc.

V1.4, Aug, 2005

P3: Port 3 of I/O port, P3.2 is modified as an input

Address:0B0H

P2: Port 2 of I/O port.

Address:0A0H

P1: Port 1 of I/O port, P1.7 is modified for dumping sensor data.

Address:090H

P0: Port 0 of I/O port.

Address:080H

TH0: High byte of Timer 0.

Address:08CH

TL0: Low byte of Timer 0.

Address:08AH

TH1: High byte of Timer 1.

Address:08DH

TL1: Low byte of Timer 1.

Address:08BH

TH2: High byte of Timer 2.

Address:0CDH

TL2: Low byte of Timer 2.

Address:0CCH

Address:085H

DPL1:

Low

byte of DPTR1.

Address:084H

DPH:

High

byte of DPTR.

Address:083H

DPL:

Low

byte of DPTR.

Address:082H

DPS

Address:86H

bit 7

bit 0

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Dps

Data Point Selection bit. DPS=1: DPTR will be selected. DPS=0: DPTR1 will be selected