C501_1 Datasheet, PDF (71/121 Pages) Siemens Semiconductor Group – 8-Bit Single-Chip Microcontroller

On-Chip Peripheral Components
C501
Write
to
SBUF
Internal Bus
1
S
Q
D
SBUF
CLK
Zero Detector
RXD
&
P3.0 Alt.
Output
Function
Baud
Rate S6
Clock
REN
&
RI
Start
Shift
TX Control
TX Clock
TI
Send
Serial
1
Port
Interrupt
Start
RX Clock
RI _Receive
RX Control
1 1 1 1 1 1 1 0 ^Shift
Load
SBUF
Input Shift Register
Shift
1
&
Shift
Clock
RXD
P3.0 Alt.
Input
Function
Read
SBUF
SBUF
Internal Bus
Figure 6-19
Serial Interface, Mode 0, Functional Diagram
MCS02101
Semiconductor Group
6-37
TXD
P3.1 Alt.
Output
Function