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Port Name
MCU Operating
Pin Name
Mode
Ports 95 to 93
(EXPE = 1)
AS, AH, HWR,
(EXPE = 0)
RD
Ports 92 and 91 (EXPE = 1)
(EXPE = 0)
Port 90
(EXPE = 1)
LWR
(EXPE = 0)
Port A
(EXPE = 1)
(EXPE = 0)
Port B
(EXPE = 1)
(EXPE = 0)
Port C
(EXPE = 1)
(EXPE = 0)
[Legend]
H
: High level
L
: Low level
T
: High impedance
Kept
: Input ports are in the high-impedance state (when DDR = 0 and PCR = 1, the input pull-up
MOS remains on).
Output ports retain their previous state.
Depending on the pins, the on-chip peripheral modules may be initialized and the pins
may function as I/O ports determined by DDR and DR.
DDR : Data direction register
Note:
* In the case of address output, the last address accessed is retained.
Rev. 1.00, 09/03, page 696 of 704
Hardware
Reset
Standby Mode
T
T
T
T
T
T
T
T
T
T
T
T
Software Standby
Sleep
Mode
Mode
H
H
Kept
Kept
Kept
Kept
H/Kept
H/Kept
Kept
Kept
Kept
Kept
Kept
Kept
Kept
Kept
Program Execution State
AS/AH, HWR/RD
I/O port
I/O port
I/O port
LWR/I/O port
I/O port
I/O port
I/O port
I/O port
I/O port
(PC7 to PC4 are input ports)
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