AT89C51IC2-RLTIM ATMEL [ATMEL Corporation], AT89C51IC2-RLTIM Datasheet - Page 51
AT89C51IC2-RLTIM
Manufacturer Part Number
AT89C51IC2-RLTIM
Description
8-bit Flash Microcontroller with 2-wire Interface
Manufacturer
ATMEL [ATMEL Corporation]
Datasheet
1.AT89C51IC2-RLTIM.pdf
(147 pages)
- Current page: 51 of 147
- Download datasheet (2Mb)
Internal Baud Rate Generator
(BRG)
Figure 21. Internal Baud Rate
4301C–8051–06/06
Peripheral clock
BRR
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.
•
The baud rate for UART is token by formula:
B a u d R a t e
(
B R L
/6
)
=
256
SPD
0
=
1
auto reload counter
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
2
–
×
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
2
2
×
×
2
6
2
×
S M O D
2
6
1
BRG
BRL
S M O D
(
1
–
–
S P D
S P D
1
×
×
overflow
〉
F
)
F
×
×
C L K P E R I P H
C L K P E R I P H
16
16
×
×
[
B a u d R a t e
256
–
/2
(
B R L
)
]
0
1
AT89C51IC2
INT_BRG
51
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