Fujitsu MB91401 Datasheet page 14

MB91401
CARD IF (41 pin)
Pin name Pin no.
CFD15 2
CFD14 73
CFD13 72
CFD12 137
CFD11 136
CFD10 71
CFD9 192
CFD8 135
CFD7 70
CFD6 240
CFD5 191
CFD4 134
CFD3 69
CFD2 190
CFD0 133
CFD0 68
CFA10 189
CFA9 132
CFA8 67
CFA7 188
CFA6 131
CFA5 66
CFA4 236
CFA3 187
CFA2 130
CFA1 65
CFA0 186
CFCE2X 128
CFCE1X 63
CFREGX 185
CFCD2X 123
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I/O
Polarity Circuit
CF data input/output pins
I/O B I/O data/status/command signal pin to CompactFlash card
side
CF address 10 to 0 output pins
OUT B Address output CFA10 to CFA0 pins to CompactFlash card
side
CF card enable output pin
Byte access output pin to CompactFlash card side
Nega-
OUT B Note : Supported for access to CFD7 to CFD0.
tive
When "L" level is output, odd number byte access of the
word is shown.
CF card enable output pin
Byte access output pin to CompactFlash card side
Note : Supported for access to CFD7 to CFD0.
Nega- When "L" level is output at word access, even number byte
OUT B
tive access of the word is shown.
When the byte is accessed, the even number byte and odd
number byte access become possible because CFA0 and
CFCE2X are combined and used by it.
CF Attribute/Common switching output pin
Attribute/Common switching output pin to CompactFlash
Nega-
OUT B card side
tive
"H" : Common Memory select
"L" : Attribute Memory select
Card connection detect input pin : CFCD2X
Nega- Checking connection pin of the socket and CompactFlash
IN E
tive card. It is shown that the CompactFlash card was connected
when this signal and CFCD1X are both input by "0".
Prelminary
2004.11.12
Function/application
(Continued)