Rainbow Electronics AT89C5132 User Manual

Page 34

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34

AT8xC5132

4173A–8051–08/02

Table 41. Serial I/O Port SFRs

Mnemonic

Add

Name

7

6

5

4

3

2

1

0

SCON

98h

Serial Control

FE/SM0

SM1

SM2

REN

TB8

RB8

TI

RI

SBUF

99h

Serial Data Buffer

–

–

–

–

–

–

–

–

SADEN

B9h

Slave Address Mask

–

–

–

–

–

–

–

–

SADDR

A9h

Slave Address

–

–

–

–

–

–

–

–

BDRCON

92h

Baud Rate Control

–

–

–

BRR

TBCK

RBCK

SPD

SRC

BRL

91h

Baud Rate Reload

–

–

–

–

–

–

–

–

Table 42. SPI Controller SFRs

Mnemonic

Add

Name

7

6

5

4

3

2

1

0

SPCON

C3h

SPI Control

SPR2

SPEN

SSDIS

MSTR

CPOL

CPHA

SPR1

SPR0

SPSTA

C4h

SPI Status

SPIF

WCOL

–

MODF

–

–

–

–

SPDAT

C5h

SPI Data

SPD7

SPD6

SPD5

SPD4

SPD3

SPD2

SPD1

SPD0

Table 43. Special Register

Mnemonic

Add

Name

7

6

5

4

3

2

1

0

SSCON

93h

Reserved

SSCR2

SSPE

SSSTA

SSSTO

SSI

SSAA

SSCR1 SSCR0

SSSTA

94h

Reserved

SSC4

SSC3

SSC2

SSC1

SSC0

0

0

0

SSDAT

95h

Reserved

SSD7

SSD6

SSD5

SSD4

SSD3

SSD2

SSD1

SSD0

SSADR

96h

Reserved

SSA7

SSA6

SSA5

SSA4

SSA3

SSA2

SSA1

SSGC

Table 44. Keyboard Interface SFRs

Mnemonic

Add

Name

7

6

5

4

3

2

1

0

KBCON

A3h

Keyboard Control

KINL3

KINL2

KINL1

KINL0

KINM3

KINM2

KINM1

KINM0

KBSTA

A4h

Keyboard Status

KPDE

–

–

–

KINF3

KINF2

KINF1

KINF0

Table 45. A/D Controller SFRs

Mnemonic

Add

Name

7

6

5

4

3

2

1

0

ADCON

F3h

ADC Control

–

ADIDL

ADEN

ADEOC

ADSST

–

–

ADCS

ADCLK

F2h

ADC Clock Divider

–

–

–

ADCD4

ADCD3

ADCD2

ADCD1

ADCD0

ADDL

F4h

ADC Data Low Byte

–

–

–

–

–

–

ADAT1

ADAT0

ADDH

F5h

ADC Data High Byte

ADAT9

ADAT8

ADAT7

ADAT6

ADAT5

ADAT4

ADAT3

ADAT2