SAB-80C535-N Просмотр технического описания (PDF) - Infineon Technologies

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SAB-80C535-N

8-Bit CMOS Single-Chip Microcontroller

Infineon Technologies 

SAB 80C515/80C535

Special Function Registers

All registers, except the program counter and the four general purpose register banks, reside

in the special function register area. The special function registers include arithmetic registers,

pointers, and registers that provide an interface between the CPU and the on-chip peripherals.

There are also 128 directly addressable bits within the SFR area. All special function registers

are listed in table 1 and table 2.

In table 1 they are organized in numeric order of their addresses. In table 3 they are organized

in groups which refer to the functional blocks of the SAB 80C515.

Table 1

Special Function Register

Address

Register

Contents

after Reset

Address

80H

P0 1)

0FFH

98H

81H

SP

07H

99H

82H

DPL

00H

9AH

83H

DPH

00H

9BH

84H

reserved

XXH 2)

9CH

85H

reserved

XXH 2)

9DH

86H

reserved

XXH 2)

9EH

87H

PCON

000X 0000B 2) 9FH

88H

TCON 1)

00H

A0H

89H

TMOD

00H

A1H

8AH

TL0

00H

A2H

8BH

TL1

00H

A3H

8CH

TH0

00H

A4H

8DH

TH1

00H

A5H

8EH

reserved

XXH 2)

A6H

8FH

reserved

XXH 2)

A7H

90H

P1 1)

0FFH

A8H

91H

reserved

XXH 2)

A9H

92H

reserved

XXH 2)

AAH

93H

reserved

XXH 2)

ABH

94H

reserved

XXH 2)

ACH

95H

reserved

XXH 2)

ADH

96H

reserved

XXH 2)

AEH

97H

reserved

XXH 2)

AFH

1) Bit-addressable Special Function Register

2) X means that the value is indeterminate and the location is reserved

Register

SCON 1)

SBUF

reserved

reserved

reserved

reserved

reserved

reserved

P2 1)

reserved

reserved

reserved

reserved

reserved

reserved

reserved

IEN0 1)

IP0

reserved

reserved

reserved

reserved

reserved

reserved

Contents

after Reset

00H

XXH 2)

XXH 2)

XXH 2)

XXH 2)

XXH 2)

XXH 2)

XXH 2)

0FFH

XXH 2)

XXH 2)

XXH 2)

XXH 2)

XXH 2)

XXH 2)

XXH 2)

00H

X000 0000B 2)

XXH 2)

XXH 2)

XXH 2)

XXH 2)

XXH 2)

XXH 2)

Semiconductor Group

17

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