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C501_1 Datasheet, PDF (74/121 Pages) Siemens Semiconductor Group – 8-Bit Single-Chip Microcontroller
On-Chip Peripheral Components
C501
Internal Bus
1
Write
to
SBUF
S
Q
SBUF
&
D
CLK
Zero Detector
÷ 16
Baud
Rate
Clock
Sample
1-to-0
Transition
Detector
RXD
Start
TX Clock
Shift
Data
TX Control
TI Send
Serial
1
Port
Interrupt
÷ 16
RX
RI Load
Start
RX Control
SBUF
1FFH Shift
Bit
Detector
Load
SBUF
Input Shift Register
(9Bits)
Shift
Read
SBUF
Internal Bus
Figure 6-21
Serial Interface, Mode 1, Functional Diagram
SBUF
MCS02103
Semiconductor Group
6-40
1 TXD