AT89C51RB2-RLTCM ATMEL [ATMEL Corporation], AT89C51RB2-RLTCM Datasheet - Page 45

• Manufacturer Part Number: AT89C51RB2-RLTCM
• Description: 8-bit Microcontroller with 16K/ 32K Bytes Flash
• Manufacturer: ATMEL [ATMEL Corporation]

Registers
Baud Rate Selection for
UART for Mode 1 and 3
4180B–8051–04/03
Table 30. SADEN Register
SADEN – Slave Address Mask Register (B9h)
Reset Value = 0000 0000b
Not bit addressable
Table 31. SADDR Register
SADDR – Slave Address Register (A9h)
Reset Value = 0000 0000b
Not bit addressable
The Baud Rate Generator for transmit and receive clocks can be selected separately via
the T2CON and BDRCON registers.
Figure 19. Baud Rate Selection
TIMER1
TIMER2
TIMER1
TIMER2
INT_BRG
INT_BRG
7
7
6
6
RCLK
TCLK
0
1
0
1
5
5
TIMER_BRG_RX
TIMER_BRG_TX
4
4
3
3
RBCK
TBCK
0
1
0
1
AT89C51RB2/RC2
2
2
/ 16
/ 16
Rx Clock
Tx Clock
1
1
0
0
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