P89LPC9301FDH,512 View Datasheet(PDF) - NXP Semiconductors.

Part Name

Description

Manufacturer

P89LPC9301FDH,512

8-bit microcontroller with accelerated two-clock 80C51 core 4 kB/8 kB 3 V byte-erasable flash

NXP Semiconductors. 

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Table 4. 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

A2H CLKLP

EBRR

ENT1

ENT0

SRST

0

function

register

-

DPS 00

0000 00x0

Bit address F7

F6

F5

F4

F3

F2

F1

F0

B*

B register

F0H

BRGR0[2]

Baud rate

generator 0

rate low

BEH

BRGR1[2]

Baud rate

generator 0

rate high

BFH

BRGCON Baud rate

BDH

-

generator 0

control

CMP1

Comparator 1 ACH

-

control register

CMP2

Comparator 2 ADH

-

control register

00

0000 0000

00

0000 0000

00

0000 0000

-

-

-

-

-

SBRGS BRGEN 00[2] xxxx xx00

-

CE1

CP1

CN1

OE1

CO1

CMF1 00[1] xx00 0000

-

CE2

CP2

CN2

OE2

CO2

CMF2 00[1] xx00 0000

DIVM

CPU clock

95H

divide-by-M

control

00

0000 0000

DPTR

Data pointer

(2 bytes)

DPH

Data pointer 83H

high

00

0000 0000

DPL

Data pointer 82H

low

00

0000 0000

FMADRH Program flash E7H

address high

00

0000 0000

FMADRL

Program flash E6H

address low

00

0000 0000

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