LPC920F 查看數據表（PDF） - Unspecified

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LPC920F

8-bit microcontrollers with two-clock 80C51 core 2 kB/4 kB/8 kB 3 V low-power Flash with 256-byte data RAM

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Table 4: Special function registers…continued

* indicates SFRs that are bit addressable.

Name

Description

SFR Bit functions and addresses

addr. MSB

LSB

Reset value

Hex Binary

P1M2

Port 1 output mode 2

92H (P1M2.7) (P1M2.6)

-

(P1M2.4) (P1M2.3) (P1M2.2) (P1M2.1) (P1M2.0) 00[1] 00x0xx00

P3M1

Port 3 output mode 1

B1H

-

-

-

-

-

-

(P3M1.1) (P3M1.0) 03[1] xxxxxx11

P3M2

Port 3 output mode 2

B2H

-

-

-

-

-

-

(P3M2.1) (P3M2.0) 00[1] xxxxxx00

PCON

Power control register

87H SMOD1 SMOD0 BOPD

BOI

GF1

GF0 PMOD1 PMOD0 00

00000000

PCONA Power control register A

B5H RTCPD

-

VCPD

-

I2PD

-

SPD

-

00[1] 00000000

Bit address D7

D6

D5

D4

D3

D2

D1

D0

PSW*

Program status word

D0H CY

AC

F0

RS1

RS0

OV

F1

P 00H 00000000

PT0AD Port 0 digital input disable

F6H

-

-

PT0AD.5 PT0AD.4 PT0AD.3 PT0AD.2 PT0AD.1

-

00H xx00000x

RSTSRC Reset source register

DFH

-

-

BOF

POF

R_BK R_WD R_SF R_EX

[3]

RTCCON Real-time clock control

D1H RTCF RTCS1 RTCS0

-

-

-

ERTC RTCEN 60[1][6]

RTCH

Real-time clock register

HIGH

D2H

00[6] 00000000

RTCL

Real-time clock register LOW D3H

00[6] 00000000

SADDR Serial port address register A9H

00

00000000

SADEN Serial port address enable B9H

00

00000000

SBUF

Serial Port data buffer

99H

register

xx

xxxxxxxx

Bit address 9F

9E

9D

9C

9B

9A

99

98

SCON* Serial port control

98H SM0/FE SM1

SM2

REN

TB8

RB8

TI

RI 00

00000000

SSTAT Serial port extended status BAH DBMOD INTLO CIDIS DBISEL FE

BR

OE

STINT 00

00000000

register

SP

Stack pointer

81H

07

00000111

TAMOD Timer 0 and 1 auxiliary mode 8FH

-

-

-

T1M2

-

-

-

T0M2 00

xxx0xxx0

Bit address 8F

8E

8D

8C

8B

8A

89

88

TCON* Timer 0 and 1 control

88H TF1

TR1

TF0

TR0

IE1

IT1

IE0

IT0 00

00000000

TH0

Timer 0 HIGH

8CH

00

00000000

TH1

Timer 1 HIGH

8DH

00

00000000

TL0

Timer 0 LOW

8AH

00

00000000

TL1

Timer 1 LOW

8BH

00

00000000

TMOD Timer 0 and 1 mode

89H T1GATE T1C/T T1M1 T1M0 T0GATE T0C/T T0M1 T0M0 00

00000000

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