r4f2426 Renesas Electronics Corporation., r4f2426 Datasheet - Page 60

• Manufacturer Part Number: r4f2426
• Description: 16-bit Single-chip Microcomputer H8s Family / H8s/2400 Series
• Manufacturer: Renesas Electronics Corporation.

Section 1 Overview
Rev. 1.00 Sep. 19, 2008 Page 32 of 1270
REJ09B0466-0100
Type
Bus
control
Symbol
RAS/RAS2
RAS3
RAS4*
RAS5*
RAS*
CAS*
WE*
WAIT-A
WAIT-B
OE-A
OE-B
CKE-A*
CKE-B*
1
1
1
3
3
1
1
FP-144LV
109
110
35
36
109
110
35
84
56
38
137
38
137
H8S/2426, H8S/2426R
TLP-145V
A12
A13
L1
M1
A12
A13
L1
J11
N7
M2
A5
M2
A5
Pin No.
H8S/2424
FP-120BV
91
92





69
47
69
113


I/O
Output Row address strobe signal for
Output Row address strobe signal for
Output Column address strobe signal
Output Write enable signal for the
Input
Output Output enable signal when
Output Clock enable signal when the
Function
the DRAM when the DRAM
interface is set. RAS signal is
a row address strobe signal
when areas 2 to 5 are set as
the continuous DRAM space.
the synchronous DRAM when
the synchronous DRAM
interface is set.
for the synchronous DRAM
when the synchronous DRAM
interface is set.
synchronous DRAM when the
synchronous DRAM interface
is set.
Requests insertion of a wait
state in the bus cycles when
accessing an external 3-state
address space.
accessing the DRAM space.
The output pins of OE and
(OE) are selected by the port
function control register 2
(PFCR2) of port 3.
synchronous DRAM interface
is set. The output pins of CKE
and (CKE) are selected by the
port function control register 2
(PFCR2) of port 3.