C509-L_97 SIEMENS [Siemens Semiconductor Group], C509-L_97 Datasheet - Page 180

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

Figure 6-45
Functional Diagram - Serial Interfaces 0 and 1, Modes 2 and 3 / Mode A
Semiconductor Group
Write
to
SxBUF
Baud
Rate
Clock
RXDx
Note: x means that 0 or 1 can
be inserted for interface
0 or interface 1, resp.
1-to-0
Transition
Detector
Sample
S
D
CLK
÷ 16
TB8x
Q
Q
Start
TX Clock
Start
Detector
÷ 16
Internal Bus
Bit
Internal Bus
RX Clock
Interrupt
Serial
Port
Load
SxBUF
Read
SxBUF
Zero Detector
RX Control
TX Control
6-102
SxBUF
<
_
Input Shift Register
1
Shift
On-Chip Peripheral Components
Rlx
Tlx
SxBUF
(9Bits)
1FF H Shift
SxBUF
Send
Data
Load
MCS01834
Shift
&
< 1
_
1997-10-01
TXDx
C509-L