r4f2426 Renesas Electronics Corporation., r4f2426 Datasheet - Page 688
r4f2426
Manufacturer Part Number
r4f2426
Description
16-bit Single-chip Microcomputer H8s Family / H8s/2400 Series
Manufacturer
Renesas Electronics Corporation.
Datasheet
1.R4F2426.pdf
(1302 pages)
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Section 10 I/O Ports
• PH0/CS4/RAS4/WE*
Note:
Rev. 1.00 Sep. 19, 2008 Page 660 of 1270
REJ09B0466-0100
Operating
mode
EXPE
CS4E
RMTS2 to
RMTS0
PH0DDR
Pin
function
The pin function is switched as shown below according to the combination of the operating
mode, bit EXPE, bits RMTS2 to RMTS0 in DRAMCR of the bus controller, bit CS4E in
PFCR0, and bit PH0DDR.
*
input
PH0
Not supported in the H8S/2426 Group.
0
0
output
PH0
1
normal space
input
PH0
0
Area 4 is
1, 2, 4
output
CS4
1
Area 4
DRAM
output
space
RAS4
1
is
chronous
Areas 2
to 5 are
DRAM*
output
space
WE*
syn-
input
PH0
0
0
output
PH0
1
input
PH0
0
0
output
PH0
1
input
7
PH0
0
Area 4 is
normal
space
output
CS4
1
1
Area 4
DRAM
output
space
RAS4
1
is
chronous
Areas 2
to 5 are
DRAM*
output
space
WE*
syn-
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