saf-xc866-4rri3v Infineon Technologies Corporation, saf-xc866-4rri3v Datasheet - Page 79

• Manufacturer Part Number: saf-xc866-4rri3v
• Description: 8-bit Single-chip Microcontroller
• Manufacturer: Infineon Technologies Corporation

Data is transmitted or received on lines TXD and RXD, which are normally connected to
the pins MTSR (Master Transmit/Slave Receive) and MRST (Master Receive/Slave
Transmit). The clock signal is output via line MS_CLK (Master Serial Shift Clock) or input
via line SS_CLK (Slave Serial Shift Clock). Both lines are normally connected to the pin
SCLK. Transmission and reception of data are double-buffered.
Figure 31
Figure 31
Data Sheet
shows the block diagram of the SSC.
PCLK
SSC Block Diagram
Baud-rate
Generator
Transmit Buffer
Register TB
SSC Control Block
Status
Register CON
16-Bit Shift
Internal Bus
Register
Control
Clock
Shift
Clock
Control
Receive Buffer
75
Register RB
RIR
TIR
EIR
Control
Pin
Receive Int. Request
Transmit Int. Request
Error Int. Request
Functional Description
SS_CLK
MS_CLK
TXD(Master)
RXD(Slave)
TXD(Slave)
RXD(Master)
V1.2, 2007-10
XC866