M16C26 Datasheet, PDF (156/239 Pages) Renesas Technology Corp – 16-BIT CMOS SINGLE-CHIP MICROCOMPUTER M16C FAMILY / M16C/20 SERIES

Udenvdeelropment
Preliminary Specifications Rev.
Specifications in this manual are
Serial Interface Special Function
0.9
tentative
and
subject to change.
SINGLE-CHIP 16-BIT
M16C/26 Group
CMOS MICROCOMPUTER
Serial Interface Special Function
UARTi can control communications on the serial bus (Figure 1.15.32). The master outputting the transfer
clock transfers data to the slave inputting the transfer clock. In this case, in order to prevent a data
collision on the bus, the master floats the output pin of other slaves/masters using the SSi input pins.
IC1
P13
P12
P72(CLK2)
P71(RxD2)
P70(TxD2)
M16C/26 (Master)
IC2
P93
P72(CLK2)
P71(RxD2)
P70(TxD2)
M16C/26 (Slave)
IC3
P93
P72(CLK2)
P71(RxD2)
P70(TxD2)
M16C/26 (Slave)
Figure 1.15.32. Programmable serial bus communication control example
150
Renesas Technology Corp.