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N=0,1 – FUJITSU F2MCTM-16LX User Manual

Page 430

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CHAPTER 20 LIN-UART

Figure 20.6-1 Baud Rate Selection Circuit of LIN-UART

EXT

REST

Txc = 0?

Txc = v/2?

OTO

1

0

1

0

FF

Rxc = 0?

Rxc = v/2?

FF

EXT

OTO

1

0

CLK

n=0,1

D14

D8

D13
D12
D11
D10
D9

D6

D7

D4

D5

D2

D3

D0

D1

Reload Value: v

Reception

15-bit Reload Counter

Transmission

15-bit Reload Counter

Reload Value: v

Count Value: T

XC

Reload

Reload

Reset

Start bit falling
edge detection

Reception
clock

Transmission
clock

SCKn

(external clock

input)

Reset

Reset

Set

Set

Internal data bus

SMRn

register

BGRn1
register

BGRn0
register