M30622 Mitsubishi, M30622 Datasheet - Page 145

• Manufacturer Part Number: M30622
• Description: SINGLE-CHIP 16-BIT CMOS MICROCOMPUTER
• Manufacturer: Mitsubishi

S I/O3, 4
UART2 Special Mode Register
Figure 1.19.31. Timing chart for setting SOUTi’s initial value and how to set it
Figure 1.19.32. S I/Oi operation timing chart
(Example) With “H” selected for S
Signal written to the S I/Oi
Note 1: With the internal clock selected for the transfer clock, the frequency dividing ratio can be selected using
Note 2: With the internal clock selected for the transfer clock, the S
Note 3: In M30623(80-pin package), the input pin S
S I/Oi output S
Signal written to the
In carrying out transmission, the output level of the SOUTi terminal as it is before transmitting 1-bit
data can be set either to “H” or to “L”. Figure 1.19.31 shows the timing chart for setting an SOUTi initial
value and how to set it.
Figure 1.19.32 shows the S I/Oi operation timing
transmission/reception
S
Tentative Specifications REV.A
Functions for setting an S
S I/Oi operation timing
S I/Oi input S
OUT
S I/Oi port select bit
S
OUT
S
Transfer clock
S I/Oi register
i terminal output
Note: The set value is output only when the external clock has been selected. When
(i = 3, 4)
S
bits 0 and 1 of the S I/Oi control register. (No frequency division, 8-division frequency, 32-division frequency.)
state after the transfer finishes.
pecifications in this manual are tentative and subject to change.
i's initial value
OUT
set bit (SMi7)
i (internal)
initializing S
If the internal clock has been selected or if S
this output goes to the high-impedance state.
(Note 1)
(Note 3)
register
(SMi3)
OUT
IN
i
i
(i= 3, 4)
OUT
Port output
Setting the S
i, input “H” level to CLKi pin.
initial value to H
OUT
OUT
i:
i
D
OUT
0
Port selection
(normal port
i initial value
Initial value = “H” (Note)
OUT
D
IN3
1
high impedance has been set,
of S I/O3 is not connected to external pin.
S
OUT
145
i)
D
2
OUT
i terminal becomes to the high-impedance
D
D0
D0
3
D
SINGLE-CHIP 16-BIT CMOS MICROCOMPUTER
4
stored data in the S I/Oi transmission/
(Port select: Normal port
Setting the S I/Oi interrupt request bit
Signal written to the S I/Oi register
S I/Oi port select bit SMi3 = 0
(S
SOUTi initial value select bit
S
D
S
OUT
OUT
5
OUT
S I/Oi port select bit
=“L”
reception register
i: Internal
i terminal = Outputting
i terminal = “H” output
SMi3 = 0
(Falling edge)
Mitsubishi microcomputers
SMi7 = 1
D
6
M16C / 62T Group
“H”
“H” level)
1
“L”
D
(Note 2)
7
S
OUT
i)