C509-L_97 Datasheet, PDF(46/290 Page) Siemens Semiconductor Group – 8-Bit CMOS Microcontroller

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C509-L_97 Datasheet, PDF (46/290 Pages) Siemens Semiconductor Group – 8-Bit CMOS Microcontroller

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Memory Organization

C509-L

Table 3-4

Special Function Registers - Functional Blocks (contâd)

Block

Symbol Name

Address Contents after

Reset

Compare / CAFR 5) Capture 1, Falling/Rising Edge Register

Capture CRCH

Comp./Rel./Capt. Reg. High Byte

Unit (CCU) CRCL

Comp./Rel./Capt. Reg. Low Byte

Timer 2 COMSETL Compare Set Register, Low Byte

contâd

COMSETH Compare Set Register, High Byte

COMCLRL Compare Clear Register, Low Byte

COMCLRH Compare Clear Register, High Byte

SETMSK Compare Set Mask Register

CLRMSK Compare Clear Mask Register

CTCON 2) Compare Timer Control Register

CTRELH 5) Compare Timer Rel. Reg., High Byte

CTRELL 5) Compare Timer Rel. Reg., Low Byte

CT1RELH 5) Compare Timer 1 Rel. Reg., High Byte

CT1RELL 5) Compare Timer 1 Rel. Reg., Low Byte

TH2

Timer 2, High Byte

TL2

Timer 2, Low Byte

T2CON 2) Timer 2 Control Register

CT1CON 2) Compare Timer 1 Control Register

PRSC 2) Prescaler Control Register

F7H

CBH

CAH

A1H

A2H

A3H

A4H

A5H

A6H

E1H

DFH

DEH

DFH

DEH

CDH

CCH

C8H 1)

BCH

B4H

00H

00H

00H

00H

00H

00H

00H

00H

00H

01000000B 3)

00H

00H

00H

00H

00H

00H

00H

X1XX0000B 3)

11010101B 3)

Serial

Channels

ADCON0 2)

PCON 2)

S0BUF

S0CON

S0RELL

S0RELH

S1BUF

S1CON

S1RELL

S1RELH

A/D Converter Control Register

Power Control Register

Serial Channel 0 Buffer Register

Serial Channel 0 Control Register

Serial Channel 0 Reload Reg., Low Byte

Serial Channel 0 Reload Reg., High Byte

Serial Channel 1 Buffer Register

Serial Channel 1 Control Register

Serial Channel 1 Reload Reg., Low Byte

Serial Channel 1 Reload Reg., High Byte

D8H 1)

87H

99H

98H 1)

AAH

BAH

9CH

9BH

9DH

BBH

00H

00H

XXH 3)

00H

D9H

XXXXXX11B 3)

XXH 3)

01000000B 3)

00H

XXXXXX11B 3)

Watchdog

IEN0 2)

IEN1 2)

IP0 2)

IP1 2)

WDTREL

WDTL 6)

WDTH 6)

Interrupt Enable Register 0

Interrupt Enable Register 1

Interrupt Priority Register 0

Interrupt Priority Register 1

Watchdog Timer Reload Register

Watchdog Timer Register, Low Byte

Watchdog Timer Register, High Byte

A8H 1)

B8H 1)

A9H

B9H

86H

84H

85H

00H

00H

00H

0X000000B 3)

00H

00H

00H

1) Bit-addressable special function registers

2) This special function register is listed repeatedly since some bits of it also belong to other functional blocks.

3) X means that the value is indeterminate or the location is reserved

4) Register is mapped by bit PDIR.

5) Register is mapped by bit RMAP.

6) Registers are only readable and cannot be written.

Semiconductor Group

3-21

1997-10-01

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