C868_02 Datasheet, PDF (156/244 Pages) Infineon Technologies AG – 8 - Bit CMOS Microcontroller

C868
On-Chip Peripheral Components
Write
to
SBUF
Internal Bus
TB8
S
Q
D
SBUF
CLK
Zero Detector
&
1 ^TXD
÷ 16
Baud
Rate
Clock
Sample
1-to-0
Transition
Detector
RXD
Start
Stop Bit
Generation
Shift
Data
TX Control
TX Clock
TI ^Send
Serial
1
Port
Interrupt
÷ 16
RX Clock
Start
RX Control
RI Load
SBUF
1FF ^Shift
Bit
Detector
Load
SBUF
Input Shift Register
(9Bits)
Shift
Read
SBUF
SBUF
Internal Bus
MCS02105
Figure 4-39 Serial Interface, Mode 2 and 3, Functional Diagram
User’s Manual
4-112
V 0.4, 2002-01