C509-L_97 SIEMENS [Siemens Semiconductor Group], C509-L_97 Datasheet - Page 173

• Manufacturer Part Number: C509-L_97
• Description: 8-Bit CMOS Microcontroller
• Manufacturer: SIEMENS [Siemens Semiconductor Group]

Figure 6-41
Functional Diagram - Serial Interface 0, Mode 0
Semiconductor Group
Write
to
S0BUF
REN0
RI0
S
D
CLK
&
S6
1
Start
RX Clock
Q
Q
Start
TX Clock
Load
S0BUF
Read
S0BUF
Internal Bus
Internal Bus
Serial
Port
Interrupt
1 1 1 1 1 1 1
Zero Detector
Input Shift Register
RX Control
TX Control
S0BUF
S0BUF
1
6-95
Shift
Rl0
Tl0
On-Chip Peripheral Components
Receive
0
Send
Shift
Shift
Shift
MCS01831
Shift
Clock
&
RXD0
P3.0 Alt.
Input
Function
1
RXD0
P3.0 Alt.
Output
Function
&
1997-10-01
TXD0
P3.1 Alt.
Output
Function
C509-L