ST72521 STMICROELECTRONICS [STMicroelectronics], ST72521 Datasheet - Page 101
ST72521
Manufacturer Part Number
ST72521
Description
8-BIT MCU WITH NESTED INTERRUPTS, FLASH, 10-BIT ADC, FIVE TIMERS, SPI, SCI, I2C, CAN INTERFACE
Manufacturer
STMICROELECTRONICS [STMicroelectronics]
Datasheet
1.ST72521.pdf
(211 pages)
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SERIAL COMMUNICATIONS INTERFACE (Cont’d)
Figure 60. SCI Block Diagram
TDO
RDI
TIE
CR2
TRANSMITTER
INTERRUPT
TCIE
CONTROL
CLOCK
f
CPU
Transmit Data Register (TDR)
SCI
TRANSMIT
CONTROL
RIE
Transmit Shift Register
Write
ILIE
/16
TE
RE
/PR
RWU
WAKE
UNIT
UP
R8
SBK
T8
CONVENTIONAL BAUD RATE GENERATOR
SCP1
Received Data Register (RDR)
SCID
Read
SCP0 SCT2 SCT1 SCT0 SCR2 SCR1SCR0
Received Shift Register
TDRE TC RDRF IDLE OR
TRANSMITTER RATE
M
CONTROL
RECEIVER
WAKE
CONTROL
(DATA REGISTER) DR
PCE PS
RECEIVER RATE
CONTROL
CR1
PIE
NF
BRR
RECEIVER
FE
CLOCK
ST72521
PE
SR
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