89LPC925 데이터 시트보기 (PDF) - Philips Electronics

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89LPC925

8-bit microcontrollers with accelerated two-clock 80C51 core 4 kB/8 kB 3 V low-power Flash with 8-bit A/D converter

Philips Electronics 

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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

00000000

ADCON1 A/D control register 1

97H ENBI1 ENADCI TMM1 EDGE1 ADCI1 ENADC1 ADCS11 ADCS10 00

1

00000000

ADINS A/D input select

A3H ADI13 ADI12 ADI11 ADI10

-

-

-

-

00

00000000

ADMODA A/D mode register A

C0H BNDI1 BURST1 SCC1 SCAN1

-

-

-

-

00

00000000

ADMODB A/D mode register B

A1H CLK2 CLK1 CLK0

-

ENDAC1

-

BSA1

-

00

000x0000

AD1BH A/D_1 boundary high register C4H

FF

11111111

AD1BL A/D_1 boundary low register BCH

00

00000000

AD1DAT0 A/D_1 data register 0

D5H

00

00000000

AD1DAT1 A/D_1 data register 1

D6H

00

00000000

AD1DAT2 A/D_1 data register 2

D7H

00

00000000

AD1DAT3 A/D_1 data register 3

F5H

00

00000000

AUXR1 Auxiliary function register

A2H CLKLP EBRR ENT1 ENT0 SRST

0

-

DPS 00[1] 000000x0

Bit address F7

F6

F5

F4

F3

F2

F1

F0

B*

B register

F0H

00

00000000

BRGR0[2] Baud rate generator rate

LOW

BEH

00

00000000

BRGR1[2] Baud rate generator rate

HIGH

BFH

00

00000000

BRGCON Baud rate generator control BDH

-

-

-

-

-

-

SBRGS BRGEN 00

xxxxxx00

CMP1

Comparator 1 control register ACH

-

-

CE1

CP1

CN1

OE1

CO1

CMF1 00[1] xx000000

CMP2

Comparator 2 control register ADH

-

-

CE2

CP2

CN2

OE2

CO2

CMF2 00[1] xx000000

DIVM

CPU clock divide-by-M

95H

control

00

00000000

DPTR

Data pointer (2 bytes)

DPH Data pointer HIGH

83H

00

00000000

DPL Data pointer LOW

82H

00

00000000

FMADRH Program Flash address HIGH E7H

00

00000000

FMADRL Program Flash address LOW E6H

00

00000000

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