6

Notes:

1. For some functions that share a register address in HWindow0, the opposite access type (read/write) is available in HWindow 15 if

indicated by the three asterisks (***).

2. These registers are not available in the industry standard 8XC196KD. Therefore, industry standard development software will n ot recognize these

mnemonics, and you will only be able to access them via their physical addresses.

Table 7. SFR Memory Mapping

Address

HWin 0 Read

HWin 0 Write

HWin 1

019H

Stack Pntr (hi)

Stack Pntr (hi)

Stack Pntr (hi)

Stack Pntr (hi)

018H

Stack Pntr (lo)

Stack Pntr (lo)

Stack Pntr (lo)

Stack Pntr (lo)

017H

IOS2

PWM0_CTRL

PWM2_CTRL

***

016H

IOS1

IOC1

PWM1_CTRL

***

015H

IOS0

IOC0

***

014H

WSR

WSR

WSR

WSR

013H

INT_MASK1

INT_MASK1

INT_MASK1

INT_MASK1

012H

INT_PEND1

INT_PEND1

INT_PEND1

INT_PEND1

011H

SP_STAT

SP_CON

RESERVED

***

010H

PORT 2

PORT 2

RESERVED

PSW

2

00FH

PORT 1

PORT 1

Timer 3(hi)

2

RESERVED

00EH

PORT 0

BAUD RATE

Timer 3(lo)

2

RESERVED

00DH

Timer 2 (hi)

Timer 2 (hi)

WDT-SCALE

2

T2CAPTURE (hi)

00CH

Timer 2 (lo)

Timer 2 (lo)

IOC3

T2CAPTURE (lo)

00BH

Timer 1 (hi)

IOC2

***

00AH

Timer 1 (lo)

Watchdog

***

009H

INT_PEND

INT_PEND

INT_PEND

INT_PEND

008H

INT_MASK

INT_MASK

INT_MASK

INT_MASK

007H

SBUF (RX)

SBUF (TX)

PTSSRV (hi)

***

006H

HSI_status

HSO_command

PTSSRV (lo)

***

005H

HSI_time(hi)

HSO_time (hi)

PTSSEL (hi)

***

004H

HSI_time (lo)

HSO_time (lo)

PTSSEL (lo)

***

003H

RESERVED

HSI_mode

RESERVED

***

002H

RESERVED

RESERVED

RESERVED

RESERVED

001H

Zero_reg (hi)

Zero_reg (hi)

Zero-reg (hi)

Zero_reg (hi)

000H

Zero_reg (lo)

Zero_reg (lo)

Zero_reg (lo)

Zero_reg (lo)