Datasheet

Section 10 I/O Ports
R01UH0310EJ0500 Rev. 5.00 Page 685 of 1384
Sep 25, 2012
H8S/2426, H8S/2426R, H8S/2424 Group
10.16.4 Port H Open Drain Control Register (PHODR)
PHODR specifies the output type of each port H pin.
Bit Bit Name Initial Value R/W Description
7 to 4 ⎯ All 0 ⎯ Reserved
These bits are always read as 0. Only the initial
values should be written to these bits.
3 PH3ODR 0 R/W
2 PH2ODR 0 R/W
1 PH1ODR 0 R/W
0 PH0ODR 0 R/W
When not specified for CS4, CS5, CS6, CS7,
OE-A*
2
, CKE-A*
1
, RAS4*
2
, RAS5*
2
, WE*
1
, or
SDRAMφ*
1
output, setting a PHODR bit to 1 makes
the corresponding pin an NMOS open-drain output
pin, while clearing a PHODR bit to 0 makes the
corresponding pin a CMOS output pin.
Notes: 1. Not supported in the H8S/2426 Group.
2. Not supported in the 5-V version.