DS80C310

031296 6/21

SPECIAL FUNCTION REGISTERS

Special Function Registers (SFRs) control most special features of the DS80C310. The High–Speed Microcontroller

User’s Guide describes all SFRs. Functions that are not part of the standard 80C32 are in bold.

SPECIAL FUNCTION REGISTERS Table 2

REGISTER

BIT 7

BIT 6

BIT 5

BIT 4

BIT 3

BIT 2

BIT 1

BIT 0

ADDRESS

SP

81h

DPL

82h

DPH

83h

DPL1

84h

DPH1

85h

DPS

0

0

0

0

0

0

0

SEL

86h

PCON

SMOD

SMOD0

–

–

GF1

GF0

STOP

IDLE

87h

TCON

TF1

TR1

TF0

TR0

IE1

IT1

IE0

IT0

88h

TMOD

GATE

C/T

M1

M0

GATE

C/T

M1

M0

89h

TL0

8Ah

TL1

8Bh

TH0

8Ch

TH1

8Dh

CKCON

–

–

T2M

T1M

T0M

MD2

MD1

MD0

8Eh

P1

P1.7

P1.6

P1.5

P1.4

P1.3

P1.2

P1.1

P1.0

90h

EXIF

IE5

IE4

IE3

IE2

–

–

–

–

91h

SCON

SM0/FE

SM1

SM2

REN

TB8

RB8

TI

RI

98h

SBUF

99h

P2

P2.7

P2.6

P2.5

P2.4

P2.3

P2.2

P2.1

P2.0

A0h

IE

EA

–

ET2

ES0

ET1

EX1

ET0

EX0

A8h

SADDR0

A9h

P3

P3.7

P3.6

P3.5

P3.4

P3.3

P3.2

P3.1

P3.0

B0h

IP

–

–

PT2

PS0

PT1

PX1

PT0

PX0

B8h

SADEN0

B9h

STATUS

0

HIP

LIP

1

1

1

1

1

C5h

T2CON

TF2

EXF2

RCLK

TCLK

EXEN2

TR2

C/T2

CP/RL2

C8h

T2MOD

–

–

–

–

–

–

T2OE

DCEN

C9h

RCAP2L

CAh

RCAP2H

CBh

TL2

CCh

TH2

CDh

PSW

CY

AC

F0

RS1

RS0

OV

FL

P

D0h

WDCON

–

POR

–

–

–

–

–

–

D8h

ACC

E0h

EIE

–

–

–

–

EX5

EX4

EX3

EX2

E8h

B

F0h

EIP

–

–

–

–

PX5

PX4

PX3

PX2

F8h