Rev. 1.00, 09/03, page 696 of 704
Port Name
Pin Name
MCU Operating
Mode
Reset
Hardware
Standby Mode
Software Standby
Mode
Sleep
Mode
Program Execution State
(EXPE = 1)
T
T
H
H
AS
/
AH
,
HWR
/
RD
Ports 95 to 93
AS
,
AH
,
HWR
,
RD
(EXPE = 0)
Kept
Kept
I/O port
Ports 92 and 91 (EXPE = 1)
T
T
Kept
Kept
I/O port
(EXPE = 0)
I/O port
Port 90
(EXPE = 1)
T
T
H/Kept
H/Kept
LWR/I/O port
LWR
(EXPE = 0)
Kept
Kept
I/O port
Port A
(EXPE = 1)
T
T
Kept
Kept
I/O port
(EXPE = 0)
I/O port
Port B
(EXPE = 1)
T
T
Kept
Kept
I/O port
(EXPE = 0)
Port C
(EXPE = 1)
T
T
Kept
Kept
(EXPE = 0)
I/O port
(PC7 to PC4 are input ports)
[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.
Summary of Contents for H8S/2437
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