SH7708 Datasheet, PDF (602/625 Pages) Renesas Technology Corp – SuperH™ RISC engine

Table A.13 Pin States (PCMCIA/Little-Endian)
PCMCIA Memory Interface (Area 5)
8-Bit Bus Width
16-Bit Bus Width
Pin
CS6 to CS0
RD
Byte/Word/Long- Byte Access
word Access
(Address 2n)
Enabled
Enabled
R Low
Low
Byte Access
(Address 2n + 1)
High
Low
Word/Longword
Access
Enabled
Low
RD/WR
W High
R High
High
High
High
High
High
High
BS
RAS/CE
CAS/CASLL /OE
CASLH
CASHL/CAS2L
CASHH /CAS2H
DQMLL/WE0
W Low
Enabled
High
High
High
High
High
R High
Low
Enabled
High
High
High
High
High
High
Low
Enabled
High
High
High
High
High
High
Low
Enabled
High
High
High
High
High
High
DQMLU/WE1
W High
R High
High
High
High
High
High
High
W Low
DQMUL/WE2/ICIORD R High
Low
High
Low
High
Low
High
W High
DQMUU/WE3/ICIOWR R High
High
High
High
High
High
High
MD3/CE2A
MD4/CE2B
MD5/RAS2
W High
High
High-Z or high^*2
High-Z or high^*3
High
High
High-Z or high^*2
High-Z or high^*3
High
Low
High-Z or high^*2
High-Z or high^*3
High
Low
High-Z or high^*2
High-Z or high^*3
CKE
WAIT
IOIS16
Disabled
Enabled^*4
Disabled
Disabled
Enabled^*4
Disabled
Disabled
Enabled^*4
Disabled
Disabled
Enabled^*4
Disabled
A25 to A0
Address
Address
Address
Address
D7 to D0
Valid data
Valid data
Invalid data
Valid data
D15 to D8
D23 to D16/
PORT7 to PORT0
D31 to D24
High-Z
High-Z^*5
High-Z^*6
Invalid data
High-Z^*5
High-Z^*6
Valid data
High-Z^*5
High-Z^*6
Valid data
High-Z^*5
High-Z^*6
588