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SMC032AF Datasheet(PDF) 17 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) 17 Page - Numonyx B.V

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SMCxxxAF
Electrical interface
17/82
–IORD
(PC card memory mode)
I34
Not used.
–IORD
(PC card I/O mode)
I/O Read strobe generated by the host. It gates I/O data
onto the bus.
–IORD
(True IDE mode)
Same as PC card I/O mode.
–CD1, –CD2
(PC card memory mode)
O26,25
These are connected to ground on the card. They are
used by the host to determine that the card is fully inserted
into its socket.
–CD1, –CD2
(PC card I/O mode)
Same for all modes.
–CD1, –CD2
(True IDE mode)
Same for all modes.
–CE1, –CE2
(PC card memory mode)
I7,32
Used to select the card and to indicate whether a byte or a
word operation is being performed. –CE2 accesses the
odd byte, –CE1 accesses the even byte or the odd byte
depending on A0 and –CE2. A multiplexing scheme based
on A0, –CE1, –CE2 allows 8 bit hosts to access all data on
D0 to D7.
–CE1, –CE2
(PC card I/O mode)
Same as PC card memory mode.
–CS0, –CS1
(True IDE mode)
CS0 is the chip select for the task file registers, while CS1
selects the Alternate Status register and the Device
Control register.
–CSEL
(PC card memory mode)
Not used.
–CSEL
(PC card I/O mode)
I
39
Not used.
–CSEL
(True IDE mode)
This internally pulled up signal is used to configure the
card as a master or slave. When grounded it is configured
as a master, when open it is configured as a slave.
–IOWR
(PC card memory mode)
I35
Not used.
–IOWR
(PC card I/O mode)
The I/O Write strobe pulse is used to clock I/O data on the
bus into the Card Controller registers. Clocking occurs on
the rising edge.
–IOWR
(True IDE mode)
Same as PC card I/O mode.
–OE
(PC card memory mode)
I9
This is an Output Enable strobe generated by the host
interface. It reads data and the CIS and Configuration
registers.
–OE
(PC card I/O mode)
Reads the CIS and Configuration registers.
–ATASEL
(True IDE mode)
Grounded by the host.
Table 9.
Signal description (continued)
Signal name
Direction
Pin
Description



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