参数资料
型号: ST72121J2T3/XXX
厂商: STMICROELECTRONICS
元件分类: 微控制器/微处理器
英文描述: 8-BIT, MROM, 8 MHz, MICROCONTROLLER, PQFP44
封装: PLASTIC, TQFP-44
文件页数: 42/87页
文件大小: 1365K
代理商: ST72121J2T3/XXX
47/87
ST72121
SERIAL COMMUNICATIONS INTERFACE (Cont’d)
Figure 31. SCI Block Diagram
WAKE
UP
UNIT
RECEIVER
CONTROL
SR
TRANSMIT
CONTROL
TDRE TC RDRF IDLE OR
NF
FE
-
CR2
SBK RWU
RE
TE
ILIE
RIE TCIE
TIE
SCI
CONTROL
INTERRUPT
CR1
R8
T8
-
M
WAKE
-
--
Received Data Register (RDR)
Received Shift Register
Read
Transmit Data Register (TDR)
Transmit Shift Register
Write
RDI
TDO
(DATA REGISTER) DR
TRANSMITTER
CLOCK
RECEIVER
CLOCK
RECEIVER RATE
TRANSMITTER RATE
BRR
SCP1
fCPU
CONTROL
SCP0 SCT2 SCT1 SCT0 SCR2 SCR1SCR0
/2
/PR
/16
CONVENTIONAL BAUD RATE GENERATOR
47
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