ST72334J4T(2003) View Datasheet(PDF) - STMicroelectronics

Part Name

Description

Manufacturer

ST72334J4T
(Rev.:2003)

8-BIT MCU WITH SINGLE VOLTAGE FLASH MEMORY, ADC, 16-BIT TIMERS, SPI, SCI INTERFACES

STMicroelectronics 

ST72334J/N, ST72314J/N, ST72124J

SERIAL COMMUNICATIONS INTERFACE (Cont’d)

Figure 48. SCI Block Diagram

TDO

RDI

Write

Transmit Data Register (TDR)

Read

(DATA REGISTER) DR

Received Data Register (RDR)

Transmit Shift Register

Received Shift Register

CR1

R8 T8 - M WAKE - -

-

TRANSMIT

CONTROL

WAKE

UP

UNIT

CR2

TIE TCIE RIE ILIE TE RE RWU SBK

RECEIVER

CONTROL

RECEIVER

CLOCK

SR

TDRE TC RDRF IDLE OR NF FE -

SCI

INTERRUPT

CONTROL

TRANSMITTER

CLOCK

fCPU

/16

/2

/PR

TRANSMITTER RATE

CONTROL

BRR

SCP1SCP0 SCT2 SCT1 SCT0 SCR2 SCR1SCR0

RECEIVER RATE

CONTROL

CONVENTIONAL BAUD RATE GENERATOR

86/153

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