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SPD6722QCCE Datasheet(PDF) 22 Page - Intel Corporation

Part No. SPD6722QCCE
Description  ISA-to-PC-Card (PCMCIA) Controllers
Download  138 Pages
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Maker  INTEL [Intel Corporation]
Homepage  http://www.intel.com
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SPD6722QCCE Datasheet(HTML) 22 Page - Intel Corporation

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PD6710/’22 — ISA-to-PC-Card (PCMCIA) Controllers
22
Datasheet
-CD[2:1]
Card Detect: These inputs indicate to
the PD67XX the presence of a card in
the socket. They are pulled high
internally in the chip.
70, 10
69, 10
132, 73
2
I-PU
1
-CE[2:1]
Card Enable: These outputs are driven
low by the PD67XX during card access
cycles to control byte/word card
access. -CE1 enables even-numbered
address bytes and -CE2 enables odd-
numbered address bytes. When
configured for 8-bit cards, only -CE1 will
be active and A0 will be set to ‘1’ for
odd-byte accesses.
25, 22
22, 19
86, 83
2
O-TS
2 or 3
2 mA
RESET
Reset: This output will be high to reset
the card and low for normal operation.
To reduce power consumption of idle
cards and to prevent reset glitches to a
card, this signal is high-impedance
unless a card is fully seated in the
socket and card interface signals are
enabled.
51
51
114
1
O-TS
2 or 3
2 mA
Table 2.
Socket Interface Pins (Sheet 3 of 4)
Pin Name1
Description2
Pin Number
Qty.
I/O
Pwr.
Drive
PD6710
PD6722
Socket A
Socket B
1. 1To differentiate the sockets, all PD6722 pin names have either A_ or B_ prepended to the pin names indicated. For example,
A_A[25:0] and B_A[25:0] are the independent address buses to the sockets.
2. 2When a socket is configured as an ATA drive interface, socket interface pin functions change. See Table 17 on page 88.


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