M16C6K7 Datasheet, PDF (123/285 Pages) Renesas Technology Corp – SINGLE-CHIP 16-BIT CMOS MICROCOMPUTER

Rev.1.0
USAI/ROT32, _4Special Mode Register
Mitsubishi microcomputers
M16C / 6K7 Group
SINGLE-CHIP 16-BIT CMOS MICROCOMPUTER
S I/O3, 4
S I/O 3 and S I/O 4 are exclusive clock-synchronous serial I/Os.
Fig.GA-28 shows the S I/O 3, 4 block diagram, and Fig.GA-29 shows the S I/O 3, 4 control register.
Table.GA-9 shows the specifications of S I/O 3, 4.
P90/CLK3
(P95/CLK4)
f1
f8
f32
SMi3
SMi6
SMi1
SMi0
Data bus
Synchronous
circuit
SMi6
1/2
1/(ni+1)
Transfer rate register (8)
S I/O counter i (3)
S I/Oi
interrupt request
P92/SOUT3
(P96/SOUT4)
P91/SIN3
(P97/SIN4)
SMi2
SMi3
SMi5 LSB
MSB
S I/Oi transmission/reception register (8)
8
Note: i = 3, 4.
ni = A value set in the S I/O transfer rate register i (036316, 036716).
Fig.GA-28 S I/O3, 4 block diagram
122