89C51IC2-CM ATMEL [ATMEL Corporation], 89C51IC2-CM Datasheet - Page 50
![no-image](/images/no-image-200.jpg)
89C51IC2-CM
Manufacturer Part Number
89C51IC2-CM
Description
8-bit Flash Microcontroller with 2-wire Interface
Manufacturer
ATMEL [ATMEL Corporation]
Datasheet
1.89C51IC2-CM.pdf
(146 pages)
- Current page: 50 of 146
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Baud Rate Selection for
UART for mode 1 and 3
50
AT89C51IC2
TIMER1
Table 35. 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 20. Baud Rate selection
Table 36. Baud Rate Selection Table UART
TIMER2
TIMER1
TIMER2
INT_BRG
INT_BRG
(T2CON)
7
TCLK
X
X
X
0
1
0
1
0
1
6
RCLK
TCLK
0
1
(T2CON)
0
1
RCLK
0
0
1
1
0
1
X
X
X
5
TIMER_BRG_RX
TIMER_BRG_TX
(BDRCON)
TBCK
0
0
0
0
1
1
0
0
1
4
(BDRCON)
RBCK
TBCK
RBCK
3
0
1
0
1
0
0
0
0
0
0
1
1
1
2
Clock Source
/ 16
/ 16
UART Tx
INT_BRG
INT_BRG
INT_BRG
Timer 1
Timer 2
Timer 1
Timer 2
Timer 1
Timer 2
Rx Clock
Tx Clock
1
4301A–8051–01/04
Clock Source
UART Rx
INT_BRG
INT_BRG
INT_BRG
Timer 1
Timer 1
Timer 2
Timer 2
Timer 1
Timer 2
0
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