ATWEBDVK-02WC Atmel, ATWEBDVK-02WC Datasheet - Page 52
ATWEBDVK-02WC
Manufacturer Part Number
ATWEBDVK-02WC
Description
KIT DEV TCP/IP AT89C51RD2 WEBCAM
Manufacturer
Atmel
Series
@Webr
Datasheet
1.ATWEBDVK-02RC.pdf
(137 pages)
Specifications of ATWEBDVK-02WC
Main Purpose
*
Embedded
*
Utilized Ic / Part
AT89C51RD2
Primary Attributes
*
Secondary Attributes
*
Lead Free Status / RoHS Status
Contains lead / RoHS non-compliant
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14.4.1
Figure 14-5. Internal Baud Rate
52
AT89C51RD2/ED2
Internal Baud Rate Generator (BRG)
Table 14-3.
When the internal Baud Rate Generator is used, the Baud Rates are determined by the BRG
overflow depending on the BRL reload value, the value of SPD bit (Speed Mode) in BDRCON
register and the value of the SMOD1 bit in PCON register.
Baud_Rate =
• The baud rate for UART is token by formula:
BRL = 256 -
(T2CON)
TCLK
X
X
X
0
1
0
1
0
1
F
Clk Periph
6
6
(1-SPD)
(1-SPD)
Baud Rate Selection Table UART
2
2
SMOD1
SMOD1
⋅ 32 ⋅ Baud_Rate
⋅ 32 ⋅ (256 -BRL)
(T2CON)
RCLK
÷ 6
X
X
X
0
0
1
1
0
1
⋅ F
⋅ F
PER
PER
BDRCON.1
SPD
0
1
(BDRCON)
TBCK
0
0
0
0
1
1
0
0
1
BDRCON.4
BRR
(BDRCON)
(8 bits)
(8 bits)
RBCK
BRG
BRL
0
0
0
0
0
0
1
1
1
Overflow
Clock Source
INT_BRG
INT_BRG
INT_BRG
UART Tx
Timer 1
Timer 2
Timer 1
Timer 2
Timer 1
Timer 2
÷ 2
SMOD1
PCON.7
0
1
4235K–8051–05/08
Clock Source
UART Rx
INT_BRG
INT_BRG
INT_BRG
Timer 1
Timer 1
Timer 2
Timer 2
Timer 1
Timer 2
INT_BRG
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