P89LPC914 View Datasheet(PDF) - NXP Semiconductors.

Part Name

Description

Manufacturer

P89LPC914

8-bit microcontrollers with two-clock 80C51 core, 1 kB 3 V flash with 128-byte RAM

NXP Semiconductors. 

xxxxxxxxxxxxxxxxxxxxx xxxxxxxxxxxxxxxxxxxxxxxxxx xxxxxxx x x x xxxxxxxxxxxxxxxxxxxxxxxxxxxxxx xxxxxxxxxxxxxxxxxxx xx xx

xxxxx xxxxxxxxxxxxxxxxxxxxxxxxxxx xxxxxxxxxxxxxxxxxxx xxxxxx xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx xxxxxxxxxxxx x x

xxxxxxxxxxxxxxxxxxxxx xxxxxxxxxxxxxxxxxxxxxxxxxxxxxx xxxxx xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx xxxxxxxx

xxxxxxxxxxxxxxxxxxxxxxxxx xxxxxxxxxxxxxxxxxxxx xxx

Table 7. P89LPC912 Special function registers …continued

* indicates SFRs that are bit addressable.

Name

Description

SFR Bit functions and addresses

addr. MSB

LSB

Reset value

Hex Binary

KBCON Keypad control register

94H

-

-

-

-

-

-

PATN

KBIF 00[1] xxxx xx00

_SEL

KBMASK Keypad interrupt mask

86H

register

00

0000 0000

KBPATN Keypad pattern register

93H

FF

1111 1111

Bit address 87

86

85

84

83

82

81

80

P0*

Port 0

80H

CMP1/ CMPREF CIN1A/

CIN2A/

[1]

KB6

/ KB5

KB4

KB2

Bit address 97

96

95

94

93

92

91

90

P1*

Port 1

90H

RST

T0

[1]

Bit address A7

A6

A5

A4

A3

A2

A1

A0

P2*

Port 2

A0H

SPICLK SS

MISO MOSI

[1]

Bit address B7

B6

B5

B4

B3

B2

B1

B0

P3*

Port 3

B0H

XTAL1 XTAL2 [1]

P0M1

Port 0 output mode 1

84H

(P0M1.6) (P0M1.5) (P0M1.4)

(P0M1.2)

FF

1111 1111

P0M2

Port 0 output mode 2

85H

(P0M2.6) (P0M2.5) (P0M2.4)

(P0M2.2)

00

0000 0000

P1M1

Port 1 output mode 1

91H

(P1M1.2)

D3[1] 11x1 xx11

P1M2

Port 1 output mode 2

92H

(P1M2.2)

-

00[1] 00x0 xx00

P2M1

Port 2 output mode 1

A4H

(P2M1.5) (P2M1.4) (P2M1.3) (P2M1.2)

FF

1111 1111

P2M2

Port 2 output mode 2

A5H

(P2M2.5) (P2M2.4) (P2M2.3) (P2M2.2)

00

0000 0000

P3M1

Port 3 output mode 1

B1H

(P3M1.1) (P3M1.0) 03[1] xxxx xx11

P3M2

Port 3 output mode 2

B2H

(P3M2.1) (P3M2.0) 00[1] xxxx xx00

PCON

Power control register

87H

-

-

BOPD

BOI

GF1

GF0 PMOD1 PMOD0 00

0000 0000

PCONA Power control register A

B5H RTCPD

-

VCPD

-

-

SPPD

-

-

00[1] 0000 0000

Bit address D7

D6

D5

D4

D3

D2

D1

D0

PSW*

Program status word

D0H CY

AC

F0

RS1

RS0

OV

F1

P 00

0000 0000

PT0AD Port 0 digital input disable

F6H

-

-

PT0AD.5 PT0AD.4

-

PT0AD.2

-

-

00

xx00 000x

RSTSRC Reset source register

DFH

-

-

BOF

POF

-

R_WD R_SF R_EX [2]

RTCCON Real-time clock control

D1H RTCF RTCS1 RTCS0

-

-

-

ERTC RTCEN 60[1][5] 011x xx00

RTCH

Real-time clock register high D2H

00[5] 0000 0000

Share Link: