P89C669BBD Ver la hoja de datos (PDF) - Philips Electronics

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P89C669BBD

80C51 8-bit microcontroller family with extended memory; 96 kB Flash with 2 kB RAM

Philips Electronics 

Table 5:

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Special function registers

Name

Description

SFR

addr.

Bit functions and addresses

MSB

LSB

Reset

value

Bit address E7

E6

E5

E4

E3

E2

E1

E0

ACC [1]

Accumulator

E0H

00H

AUXR [2]

Auxiliary Function Register

8EH -

-

-

-

-

-

EXTRAM AO

00H[6]

AUXR1 [2] Auxiliary Function Register 1

A2H -

-

ENBOOT -

GF2

0

-

DPS

00H[6]

Bit address F7

F6

F5

F4

F3

F2

F1

F0

B [1]

B Register

F0H

00H

BRGCON [2] Baud Rate Generator Control 85H[3] -

-

-

-

-

-

S0BRGS BRGEN 00H[6]

BRGR0 [2][5] Baud Rate Generator Rate LOW 86H[3]

00H

BRGR1 [2][5] Baud Rate Generator Rate HIGH 87H[3]

00H[6]

CCAP0H [2] Module 0 Capture HIGH

FAH

XXH

CCAP1H [2] Module 1 Capture HIGH

FBH

XXH

CCAP2H [2] Module 2 Capture HIGH

FCH

XXH

CCAP3H [2] Module 3 Capture HIGH

FDH

XXH

CCAP4H [2] Module 4 Capture HIGH

FEH

XXH

CCAP0L [2] Module 0 Capture LOW

EAH

XXH

CCAP1L [2] Module 1 Capture LOW

EBH

XXH

CCAP2L [2] Module 2 Capture LOW

ECH

XXH

CCAP3L [2] Module 3 Capture LOW

EDH

XXH

CCAP4L [2] Module 4 Capture LOW

EEH

XXH

CCAPM0 [2] Module 0 Mode

DAH -

ECOM_0 CAPP_0 CAPN_0 MAT_0 TOG_0 PWM_0 ECCF_0 00H[6]

CCAPM1 [2] Module 1 Mode

DBH -

ECOM_1 CAPP_1 CAPN_1 MAT_1 TOG_1 PWM_1 ECCF_1 00H[6]

CCAPM2 [2] Module 2 Mode

DCH -

ECOM_2 CAPP_2 CAPN_2 MAT_2 TOG_2 PWM_2 ECCF_2 00H[6]

CCAPM3 [2] Module 3 Mode

DDH -

ECOM_3 CAPP_3 CAPN_3 MAT_3 TOG_3 PWM_3 ECCF_3 00H[6]

CCAPM4 [2] Module 4 Mode

DEH -

ECOM_4 CAPP_4 CAPN_4 MAT_4 TOG_4 PWM_4 ECCF_4 00H[6]

Bit address DF

DE

DD

DC

DB

DA

D9

D8

CCON [1] [2] PCA Counter Control

D8H CF

CR

-

CCF4

CCF3 CCF2

CCF1

CCF0

00H[6]

CH [2]

PCA Counter HIGH

F9H

00H

CL [2]

PCA Counter LOW

E9H

00H

CMOD [2] PCA Counter Mode

D9H CIDL

WDTE -

-

-

CPS1 CPS0 ECF

00H[6]

DPTR

Data Pointer (2 bytes)

00H

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