8. I/O Ports
Rev.3.00 Jul. 19, 2007 page 177 of 532
REJ09B0397-0300
In the H8/3854 Group, bit 6 is reserved, and must always be cleared to 0.
Bit 5—P1
5
/
IRQ
1
/TMIB Pin Function Switch (IRQ1):
This bit selects whether pin
P1
5
/
IRQ
1
/TMIB is used as P1
5
or as
IRQ
1
/TMIB.
Bit 5: IRQ1
Description
0
Functions as P1
5
I/O pin
(initial value)
1 Functions
as
IRQ
1
/TMIB input pin
Note: Rising or falling edge sensing can be designated for
IRQ
1
/TMIB.
For details on TMIB pin settings, see Timer Mode Register B (TMB) in section 9.3.2,
Register Descriptions.
Bit 4—P1
4
/PWM Pin Function Switch (PWM):
This bit selects whether pin P1
4
/PWM is used as
P1
4
or as PWM.
Bit 4: PWM
Description
0
Functions as P1
4
I/O pin
(initial value)
1
Functions as PWM output pin
In the H8/3854 Group, bit 4 is reserved, and must always be cleared to 0.
Bit 3—Reserved Bit:
Bit 3 is reserved; it should always be cleared to 0.
Bit 2—P1
2
/TMOFH Pin Function Switch (TMOFH):
This bit selects whether pin P1
2
/TMOFH
is used as P1
2
or as TMOFH.
Bit 2: TMOFH
Description
0
Functions as P1
2
I/O pin
(initial value)
1
Functions as TMOFH output pin
Bit 1—P1
1
/TMOFL Pin Function Switch (TMOFL):
This bit selects whether pin P1
1
/TMOFL is
used as P1
1
or as TMOFL.
Bit 1: TMOFL
Description
0
Functions as P1
1
I/O pin
(initial value)
1
Functions as TMOFL output pin
Summary of Contents for F-ZTAT H8 Series
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Page 194: ...7 RAM Rev 3 00 Jul 19 2007 page 168 of 532 REJ09B0397 0300...
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