M80C51 데이터 시트보기 (PDF) - Oki Electric Industry

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M80C51

CMOS 8-Bit Microcontroller

Oki Electric Industry 

¡ Semiconductor

MSM80C31F/80C51F

DETAILED DIAGRAM OF SPECIAL FUNCITON REGISTERS

Data

Address (MSB)

Bit Address

Special

Function

Register

(LSB) Symbol

0F0H F7 F6 F5 F4 F3 F2 F1 F0 B

0E0H E7 E6 E5 E4 E3 E2 E1 E0 ACC

CY AC F0 RS1 RS0 OV F1 P

0D0H D7 D6 D5 D4 D3 D2 D1 D0 PSW

PS PT1 PX1 PT0 PX0

0B8H — — — BC BB BA B9 B8 IP

0B0H B7 B6 B5 B4 B3 B2 B1 B0 P3

EA

ES ET1 EX1 ET0 EX0

0A8H AF — — AC AB AA A9 A8 IE

0A0H A7 A6 A5 A4 A3 A2 A1 A0 P2

99H

Not Bit Addressable

SM0 SM1 SM2 REN TB8 RB8 TI

98H 9F 9E 9D 9C 9B 9A 99

SBUF

RI

98 SCON

90H 97 96 95 94 93 92 91 90 P1

8DH

Not Bit Addressable

TH1

8CH

Not Bit Addressable

TH0

8BH

Not Bit Addressable

TL1

8AH

Not Bit Addressable

TL0

89H

Not Bit Addressable

TMOD

TF1 TR1 TF0 TR0 IE1 IT1 IE0 IT0

88H 8F 8E 8D 8C 8B 8A 89 88 TCON

87H

Not Bit Addressable

PCON

83H

Not Bit Addressable

DPH

82H

Not Bit Addressable

DPL

81H

Not Bit Addressable

SP

80H 87 86 85 84 83 82 81 80 P0

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