Datasheet

Section 10B I/O Ports
(H8S/2695)
Page 530 of 1434 R01UH0166EJ0600 Rev. 6.00
Mar 02, 2011
H8S/2633 Group, H8S/2633 F-ZTAT
TM
,
H8S/2633R F-ZTAT
TM
, H8S/2695
Port E Data Register (PEDR)
Bit : 7 6 5 4 3 2 1 0
PE7DR PE6DR PE5DR PE4DR PE3DR PE2DR PE1DR PE0DR
Initial value : 0 0 0 0 0 0 0 0
R/W : R/W R/W R/W R/W R/W R/W R/W R/W
PEDR is an 8-bit readable/writable register that stores output data for the port E pins (PE7 to
PE0).
PEDR is initialized to H'00 by a power-on reset, and in hardware standby mode. It retains its prior
state by a manual reset or in software standby mode.
Port E Register (PORTE)
Bit : 7 6 5 4 3 2 1 0
PE7 PE6 PE5 PE4 PE3 PE2 PE1 PE0
Initial value : —
*
—
*
—
*
—
*
—
*
—
*
—
*
—
*
R/W : R R R R R R R R
Note: * Determined by state of pins PE7 to PE0.
PORTE is an 8-bit read-only register that shows the pin states. It cannot be written to. Writing of
output data for the port E pins (PE7 to PE0) must always be performed on PEDR.
If a PORTE read is performed while PEDDR bits are set to 1, the PEDR values are read. If a
PORTE read is performed while PEDDR bits are cleared to 0, the pin states are read.
After a power-on reset and in hardware standby mode, PORTE contents are determined by the pin
states, as PEDDR and PEDR are initialized. PORTE retains its prior state by a manual reset or in
software standby mode.
Port E MOS Pull-Up Control Register (PEPCR)
Bit : 7 6 5 4 3 2 1 0
PE7PCR PE6PCR PE5PCR PE4PCR PE3PCR PE2PCR PE1PCR PE0PCR
Initial value : 0 0 0 0 0 0 0 0
R/W : R/W R/W R/W R/W R/W R/W R/W R/W