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SMC032AF Datasheet(PDF) 38 Page - Numonyx B.V

Part # SMC032AF
Description  32 Mbyte, 64 Mbyte, 128 Mbyte, 256 Mbyte and 512 Mbyte 3.3 V / 5 V supply CompactFlash??card
PDF  82 Pages
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Manufacturer  NUMONYX [Numonyx B.V]
Direct Link  http://www.numonyx.com
Logo NUMONYX - Numonyx B.V

SMC032AF Datasheet(HTML) 38 Page - Numonyx B.V

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Card configuration
SMCxxxAF
38/82
6.8
True IDE mode I/O function
The card can be configured in a True IDE mode of operation. It is configured in this mode
only when the –OE signal is grounded by the host during the power-off to power-on cycle. In
this True IDE mode the PCMCIA protocol and configuration are disabled and only I/O
operations to the task file and data register are allowed. No memory or attribute registers
are accessible to the host. The Set Feature command can be used to put the device in 8 bit
mode (see Table 34).
Removing and reinserting the card while the host computer’s power is on will reconfigure
the card to PC Card ATA mode.
Table 34.
True IDE mode I/O function
Function code
–
CE2
–
CE1
A2 to A0
–
IORD
–
IOWR
D15 to D8
D7 to D0
Invalid mode
L
L
X
X
X
High Z
High Z
Standby mode
H
H
X
X
X
High Z
High Z
Task File Write
H
L
1h-7h
H
L
Don’t care
Data In
Task File Read
H
L
1h-7h
L
H
High Z
Data Out
Data Register Write
H
L
L
H
L
Odd-byte In
Even-byte In
Data Register Read
H
L
L
L
H
Odd-byte Out
Even-byte Out
Control Register Write
L
H
6h
H
L
Don’t care
Control In
Alternate Status Read
L
H
6h
L
H
High Z
Status Out
Drive Address
L
H
7h
L
H
High Z
Data Out



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