M16C6NK Datasheet, PDF (214/404 Pages) Renesas Technology Corp – 16-BIT SINGLE-CHIP MICROCOMPUTER M16C FAMILY / M16C/60 SERIES

Under development
This document is under development and its contents are subject to change.
M16C/6N Group (M16C/6NK, M16C/6NM)
15. Serial Interface
15.2 SI/Oi (i = 3 to 6) ⁽¹⁾
SI/Oi is exclusive clock-synchronous serial I/Os.
Figure 15.36 shows the block diagram of SI/Oi, and Figures 15.37 and 15.38 show the SI/Oi-related
registers.Table 15.19 lists the specifications of SI/Oi.
NOTE:
1. 100-pin version supports SI/O3 and SI/O4.
128-pin version supports SI/O3, SI/O4, SI/O5 and SI/O6.
Main clock,
PLL clock,
or on-chip oscillator clock
CLKi
SOUTi
f1SIO
f2SIO PCLK1=0
1/2
PCLK1=1
1/8
1/4
SMi4
CLK polarity
reversing
circuit
SMi3
SMi6
Clock source select
SMi1 to SMi0
00b
f8SIO
01b
f32SIO
10b
Data bus
Synchronous
circuit
SMi6
1/2
1/(n+1)
SiBRG register
SI/O counter i
SI/Oi
interrupt
request
SMi2
SMi3
SMi5 LSB
MSB
SINi
i = 3 to 6 (5 and 6 are only in the 128-pin version.)
n = A value set in the SiBRG register.
SiTRR register
8
Figure 15.36 SI/Oi Block Diagram
Rev.2.00 Nov 28, 2005 page 196 of 378
REJ09B0124-0200