M30622MA-XXXFP RENESAS [Renesas Technology Corp], M30622MA-XXXFP Datasheet - Page 167
M30622MA-XXXFP
Manufacturer Part Number
M30622MA-XXXFP
Description
16-BIT SINGLE-CHIP MICROCOMPUTER M16C FAMILY
Manufacturer
RENESAS [Renesas Technology Corp]
Datasheet
1.M30622MA-XXXFP.pdf
(621 pages)
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S I/O3, 4
152
Figure 1.19.33. Timing chart for setting SOUTi’s initial value and how to set it
Figure 1.19.34. S I/Oi operation timing chart
Note 1: With the internal clock selected for the transfer clock, the frequency dividing ratio can be selected using bits 0 and 1 of the S I/Oi control
Note 2: With the internal clock selected for the transfer clock, the S
Note 3: Shown above is the case where the S
SI/Oi interrupt request
bit
S I/Oi output S
Signal written to the
(Example) With “H” selected for S
Signal written to the S I/Oi
SI/Oi internal clock
S I/Oi input S
When using an external clock for the transfer clock, the S
time can be set to the high or the low state. Figure 1.19.33 shows the timing chart for setting an S
initial value and how to set it.
Figure 1.19.34 shows the S I/Oi operation timing
register. (i=3,4) (No frequency division, 8-division frequency, 32-division frequency.)
transmission/reception
Functions for setting an S
S I/Oi operation timing
Transfer clock
S
S I/Oi register
OUT
S I/Oi port select bit
S
OUT
i terminal output
(i = 3, 4)
Note: The set value is output only when the external clock has been selected. When
S
(Note 1)
(i= 3, 4)
(i= 3, 4)
(i= 3, 4)
i's initial value
OUT
set bit (SMi7)
OUT
i (internal)
initializing S
If the internal clock has been selected or if S
this output goes to the high-impedance state.
IN
i
register
i
(SMi3)
"H"
"L"
"H"
"L"
"H"
"H"
"H"
"L"
"L"
"L"
"1"
"0"
OUT
Port output
Setting the S
i, make sure the CLKi pin input is held “H” level.
initial value to H
1.5 cycle (max)
OUT
OUT
OUT
i:
Hiz
OUT
i (i = 3, 4) port select bit ="1".
i
Port selection
(normal port
i initial value
D
Initial value = “H” (Note)
0
OUT
OUT
output disable has been set,
i (i = 3, 4) pin becomes to the high-impedance state after the transfer finishes.
D
S
1
OUT
i)
D
2
D0
D0
OUTi
D
3
pin output level during a non-transfer
SINGLE-CHIP 16-BIT CMOS MICROCOMPUTER
D
4
stored data in the S I/Oi transmission/
(Port select: Normal port
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)
SMi7 = 1
D
Mitsubishi microcomputers
6
“H”
M16C / 62 Group
“H” level)
1
“L”
D
7
S
OUT
Note2
i)
Hiz
OUTi
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