PixArt Imaging Inc.

PAC107

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18

PixArt Imaging Inc.

V1.4, Aug, 2005

Stack Pointer. 8-bit SP memo the address of last address pushed to the stacker. SP is

advanced before PUSH exactly executed and can be read or written through software.

Power Control Register.

SMOD1: Double Baud Rate Bit.

1 for Timer 1 in mode 1, 2, or 3 is selected in SCON.

SMOD0: Framing Error Detection Enable.

This bit selects function of the SCON0.7 and SCON1 bits.

0: SCON1.7 control the SM0 function defined for the SCON0 and SCON1

1: SCON1.7 are converted to the FE flag for respective serial port

GF1, GF0: General Purpose Flag

It will be (1, 1) when it came form Idle mode

PD: Set=1 to activates power-down mode. Clear by hardware when interrupted or reset.

IDL:

Set=1 to activates Idle mode. Clear by hardware when interrupted or reset.

PDCON

Address: E1H

bit 7

bit 0

PWM2On

PWM1On

WC3

WC2

WC1

WC0

JWP

PDC

Power Down Controller register

PDC: Power down control

0: original (pull-high), 1: SFR value (default)

JWP: Just Wake up

0: Execute Interrupt after wake up (default)

1: Don't execute Interrupt after wake up

SP

Address:81h

bit 7

bit 0

SP.7

SP.6

SP.5

SP.4

SP.3

SP.2

SP.1

SP.0

PCON

Address:87h

bit 7

bit 0

GF1

PD

IDL

GF0

SMOD0

SMOD1