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9202 Datasheet(PDF) 68 Page - STMicroelectronics

Part # 9202
Description  Flash Programmable System Devices with 8032 Microcontroller Core
PDF  175 Pages
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Manufacturer  STMICROELECTRONICS [STMicroelectronics]
Direct Link  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

9202 Datasheet(HTML) 68 Page - STMicroelectronics

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UPSD3254A, UPSD3254BV, UPSD3253B, UPSD3253BV
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Figure 30. Serial Port Mode 1, Waveforms
Figure 31. Serial Port Mode 2, Block Diagram
AI06843
Write to SBUF
Data
Shift
TxD
T1
Rx Clock
RxD
Bit Detector
Sample Times
Shift
RI
S1P1
÷16 Reset
Receive
Transmit
D0
D1
D2
D3
D4
D5
D6
D7
Send
Tx Clock
Start Bit
Stop Bit
D0
D1
D2
D3
D4
D5
D6
D7
Start Bit
Stop Bit
AI06844
Zero Detector
Internal Bus
Tx Control
Rx Control
Internal Bus
SBUF
Write
to
SBUF
Read
SBUF
Load
SBUF
SBUF
Input Shift Register
Shift
Serial
Port
Interrupt
Rx Clock
Start
Tx Clock
Start
Shift
Shift
Send
Load SBUF
TI
RI
CL
DS
Q
1FFh
TxD
Data
Rx Detector
RxD
1-to-0
Transition
Detector
÷16
Sample
÷16
÷2
TB8
Phase2 Clock
1/2*fOSC
01
SMOD



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