M30280F6HP RENESAS [Renesas Technology Corp], M30280F6HP Datasheet - Page 232

• Manufacturer Part Number: M30280F6HP
• Description: 16-BIT SINGLE-CHIP MICROCOMPUTER M16C FAMILY / M16C/Tiny SERIES
• Manufacturer: RENESAS [Renesas Technology Corp]

R
R
M
14.2 SI/O3 and SI/O4
e
E
1
. v
J
Figure 14.35 SI/O3 and SI/O4 Block Diagram
6
0
SI/O3 and SI/O4 are exclusive clock-synchronous serial I/Os.
Figure 14.35 shows the block diagram of SI/O3 and SI/O4, and Figure 14.36 shows the SI/O3 and SI/O4-
related registers.
Table 14.20 shows the specifications of SI/O3 and SI/O4.
C
2
9
0 .
B
2 /
The SI/O4 interrupt of peripheral function interrupt is not available in the 64-pin package.
0
0
Main clock,
PLL clock,
or on-chip oscillator
clock
8
Note
0
4
J
G
7
a
S
CLK
o r
0 -
. n
OUTi
S
INi
2
u
3
0
p
i
, 1
0
(
M
2
0
1
0
6
7
f
C
1SIO
SMi4
2 /
reversing
polarity
page 212
circuit
, 8
CLK
M
1/2
1/2
1
6
1/8
f
Note: i = 3, 4.
C
2SIO
f o
2 /
8
3
n = A value set in the SiBRG register.
) B
8
SMi3
SMi6
SMi2
SMi3
5
PCLK1=0
PCLK1=1
1/4
SMi5 LSB
f
f
8SIO
32SIO
SMi6
Clock source select
Synchronous
circuit
SMi1 to SMi0
01
10
00
SiTRR register
MSB
2
2
2
1/2
SI/O counter i
SiBRG register
1/(n+1)
8
Data bus
SI/Oi
interrupt request
14. Serial I/O