AT89C51RB2-3CSUM 데이터 시트보기 (PDF) - Atmel Corporation

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AT89C51RB2-3CSUM

8-bit Microcontroller with 16K/32K Bytes Flash

Atmel Corporation 

Table 8. Serial I/O Port SFRs

Mnemonic Add Name

SCON

98h Serial Control

SBUF

99h Serial Data Buffer

SADEN

B9h Slave Address Mask

SADDR

A9h Slave Address

BDRCON 9Bh Baud Rate Control

BRL

9Ah Baud Rate Reload

Table 9. SPI Controller SFRs

Mnemonic Add Name

SPCON

C3h SPI Control

SPSTA

C4h SPI Status

SPDAT

C5h SPI Data

Table 10. Keyboard Interface SFRs

Mnemonic Add Name

KBLS

9Ch Keyboard Level Selector

KBE

9Dh Keyboard Input Enable

KBF

9Eh Keyboard Flag Register

AT89C51RB2/RC2

7

6

5

4

3

2

1

0

FE/SM0 SM1

SM2

REN

TB8

RB8

TI

RI

BRR

TBCK RBCK

SPD

SRC

7

SPR2

SPIF

SPD7

6

SPEN

WCOL

SPD6

5

SSDIS

SSERR

SPD5

4

MSTR

MODF

SPD4

3

CPOL

-

SPD3

2

CPHA

-

SPD2

1

SPR1

-

SPD1

0

SPR0

-

SPD0

7

KBLS7

KBE7

KBF7

6

KBLS6

KBE6

KBF6

5

KBLS5

KBE5

KBF5

4

KBLS4

KBE4

KBF4

3

KBLS3

KBE3

KBF3

2

KBLS2

KBE2

KBF2

1

KBLS1

KBE1

KBF1

0

KBLS0

KBE0

KBF0

7

4180E–8051–10/06

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