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 8. P89LPC913 Special function registers

* indicates SFRs that are bit addressable.

Name

Description

SFR Bit functions and addresses

addr. MSB

LSB

Reset value

Hex Binary

Bit address E7

E6

E5

E4

E3

E2

E1

E0

ACC*

Accumulator

E0H

00

0000 0000

AUXR1 Auxiliary function register

A2H CLKLP EBRR

-

-

SRST

0

-

DPS 00[1] 0000 00x0

Bit address F7

F6

F5

F4

F3

F2

F1

F0

B*

B register

F0H

00

0000 0000

BRGR0[2] Baud rate generator rate low BEH

00

0000 0000

BRGR1[2] Baud rate generator rate high BFH

00

0000 0000

BRGCON Baud rate generator control BDH

-

-

-

-

-

-

SBRGS BRGEN 00[6] xxxx xx00

CMP1

Comparator 1 control register ACH

-

-

CE1

-

CN1

OE1

CO1

CMF1 00[1] xx00 0000

CMP2

Comparator 2 control register ADH

-

-

CE2

-

CN2

-

-

CMF2 00[1] xx00 0000

DIVM

CPU clock divide-by-M

95H

control

00

0000 0000

DPTR

Data pointer (2 bytes)

DPH Data pointer high

83H

00

0000 0000

DPL

Data pointer low

82H

00

0000 0000

FMADRH Program flash address high E7H

-

-

-

-

-

-

00

0000 0000

FMADRL Program flash address low E6H

00

0000 0000

FMCON Program flash control (Read) E4H BUSY

-

-

-

HVA

HVE

SV

OI 70

0111 0000

Program flash control (Write)

FMCMD. FMCMD. FMCMD. FMCMD. FMCMD. FMCMD. FMCMD. FMCMD.

7

6

5

4

3

2

1

0

FMDATA Program flash data

E5H

00

0000 0000

Bit address AF

AE

AD

AC

AB

AA

A9

A8

IEN0*

Interrupt enable 0

A8H EA EWDRT EBO ES/ESR ET1

-

ET0

-

00

0000 0000

Bit address EF

EE

ED

EC

EB

EA

E9

E8

IEN1*

Interrupt enable 1

E8H

-

EST

-

-

ESPI

EC

EKBI

-

00[1] 00x0 0000

Bit address BF

BE

BD

BC

BB

BA

B9

B8

IP0*

Interrupt priority 0

B8H

-

PWDRT PBO PS/PSR PT1

-

PT0

-

00[1] x000 0000

IP0H

Interrupt priority 0 high

B7H

-

PWDRT PBOH PSH/ PT1H

-

PT0H

-

00[1] x000 0000

H

PSRH

Share Link: