C515A_9708 Datasheet, PDF (105/182 Pages) Siemens Semiconductor Group – 8-Bit CMOS Microcontroller

On-Chip Peripheral Components
C515A
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 6-27
Serial Interface, Mode 1, Functional Diagram
SBUF
MCS02103
Semiconductor Group
6-54
1 TXD
1997-08-01