ST72324XX-AUTO 查看數據表（PDF） - STMicroelectronics
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ST72324XX-AUTO
STMicroelectronics
ST72324XX-AUTO Datasheet PDF : 194 Pages
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On-chip peripherals
ST72324xx-Auto
Figure 57. SCI baud rate and extended prescaler block diagram
Extended prescaler transmitter rate control
Transmitter
clock
SCIETPR
Extended transmitter prescaler register
SCIERPR
Extended receiver prescaler register
Receiver
clock
Extended prescaler receiver rate control
) Extended prescaler
olete Product(s fCPU
t(s) - Obs /16
Transmitter rate
control
/PR
SCIBRR
SCP1 SCP0 SCT2 SCT1 SCT0 SCR2 SCR1SCR0
roduc Receiver rate
control
te P Conventional baud rate generator
soleFraming error
Ob A framing error is detected when:
● The stop bit is not recognized on reception at the expected time, following either a de-
synchronization or excessive noise.
● A break is received.
When the framing error is detected:
● the FE bit is set by hardware
● Data is transferred from the Shift register to the SCIDR register.
● No interrupt is generated. However this bit rises at the same time as the RDRF bit
which itself generates an interrupt.
The FE bit is reset by a SCISR register read operation followed by a SCIDR register read
operation.
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Doc ID 13841 Rev 1
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