AT89C51RC2-3CSCM 查看數據表（PDF） - Atmel Corporation

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AT89C51RC2-3CSCM

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

Atmel Corporation 

AT89C51RB2/RC2

Registers

Table 30. SADEN Register

SADEN - Slave Address Mask Register (B9h)

7

6

5

4

3

2

1

0

Reset Value = 0000 0000b

Not bit addressable

Table 31. SADDR Register

SADDR - Slave Address Register (A9h)

7

6

5

4

3

2

1

0

Reset Value = 0000 0000b

Not bit addressable

Baud Rate Selection for

UART for Mode 1 and 3

The Baud Rate Generator for transmit and receive clocks can be selected separately via

the T2CON and BDRCON registers.

Figure 20. Baud Rate Selection

TIMER1

TIMER2

0

TIMER_BRG_RX

1

INT_BRG

RCLK

0

1

RBCK

/ 16

Rx Clock

TIMER1

TIMER2

INT_BRG

0

1

TCLK

TIMER_BRG_TX

0

1

TBCK

/ 16

Tx Clock

47

4180E–8051–10/06

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