Lin-Uart Baud Rate Generator Registers 1, 0 (Bgr1, Bgr0) - Fujitsu 8FX Hardware Manual

MB95630H Series
14.7.7 LIN-UART Baud Rate Generator Registers 1, 0
(BGR1, BGR0)
The LIN-UART baud rate generator registers 1, 0 (BGR1, BGR0) set the division
ratio of the serial clock. In addition, the count value in the transmit reload
counter is read from this generator.
■ Register Configuration
BGR1
bit 7
Field —
Attribute —
Initial value 0
BGR0
bit 7
Field BGR7
Attribute R/W
Initial value 0
■ Functions of BGR1 Register
[bit7] Undefined bit
The read value is always "0". Writing a value to this bit has no effect on operation.
[bit6:0] BGR[14:8]
bit6:0
Read access:
Write access:
■ Functions of BGR0 Register
[bit7:0] BGR[7:0]
bit7:0
Read access:
Write access:
The LIN-UART baud rate generator registers set the division ratio of the serial clock.
BGR1 corresponds to the upper bits and BGR0 to the lower bits. The reload value of the counter can be
written to and the transmit reload counter value can be read from BGR1 and BRG0. In addition, BGR1 and
BGR0 can be accessed by byte access and word access.
Writing a reload value to the LIN-UART baud rate generator registers causes the reload counter to start
counting.
Write values to the BGR1 register or the BGR0 register only when the LIN-UART has stopped operating.
MN702-00009-2v0-E
6 5
BGR14 BGR13
R/W R/W
0 0
6 5
BGR6 BGR5
R/W R/W
0 0
Reads the values of bit8:14 in the transmit reload counter.
Writes values to bit8:14 in the reload counter.
Reads the values of bit0:7 in the transmit reload counter.
Writes values to bit0:7 in the reload counter.
FUJITSU SEMICONDUCTOR LIMITED
4 3
BGR12 BGR11
R/W R/W
0 0
4 3
BGR4 BGR3
R/W R/W
0 0
Details
Details
CHAPTER 14 LIN-UART
14.7 Registers
2 1
BGR10 BGR9
R/W R/W
0 0
2 1
BGR2 BGR1
R/W R/W
0 0
0
BGR8
R/W
0
0
BGR0
R/W
0
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