ST72325_07 Datasheet, PDF (108/196 Pages) STMicroelectronics – 8-bit MCU with 16 to 60K Flash/ROM, ADC, CSS, 5 timers, SPI, SCI, I2C interface

SERIAL COMMUNICATIONS INTERFACE (Cont’d)
Figure 65. SCI Baud Rate and Extended Prescaler Block Diagram
EXTENDED PRESCALER TRANSMITTER RATE CONTROL
SCIETPR
EXTENDED TRANSMITTER PRESCALER REGISTER
SCIERPR
EXTENDED RECEIVER PRESCALER REGISTER
EXTENDED PRESCALER RECEIVER RATE CONTROL
EXTENDED PRESCALER
TRANSMITTER
CLOCK
RECEIVER
CLOCK
f_CPU
/16
TRANSMITTER RATE
CONTROL
/PR
SCIBRR
SCP1SCP0 SCT2 SCT1 SCT0 SCR2 SCR1SCR0
RECEIVER RATE
CONTROL
CONVENTIONAL BAUD RATE GENERATOR
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