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Table 5:

Special function registers

Name

Description

SFR

addr.

Bit functions and addresses

Reset

value

MSB

LSB

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