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SPD6722QCCE Datasheet(PDF) 23 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) 23 Page - Intel Corporation

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ISA-to-PC-Card (PCMCIA) Controllers — PD6710/’22
Datasheet
23
BVD2/
-SPKR/
-LED †
Battery Voltage Detect 2 / Speaker /
LED: In Memory Card Interface mode,
this input serves as the BVD2 or battery
warning status input.
In I/O Card Interface mode, this input
can be configured as a card’s -SPKR
binary audio input. For disk-drive
support, BVD2/-SPKR/-LED can also
be configured as a drive-status LED
input.
In DMA mode, this pin can be
programmed as the -DREQ input from
a DMA-capable PC Card.
60
59
122
1
I-PU
2 or 3
BVD1/
-STSCHG/
-RI †
Battery Voltage Detect 1 / Status
Change / Ring Indicate: In Memory
Card Interface mode, this input serves
as BVD1 (Battery Dead Status) input.
In I/O Card Interface mode, this input is
the -STSCHG input, which indicates to
the PD67XX that the card’s internal
status has changed. In I/O Card
Interface mode, this input can
alternately be used as -RI ring indicate
when IRQ15/RI_OUT* is configured for
RI Out (see “Bit 7 — IRQ15 Is RI Out”
on page 74).
62
61
124
1
I-PU
2 or 3
SOCKET_
VCC
Connect these pins to the VCC supply
of the socket (pins 17 and 51 of the
respective PC Card socket). These pins
can thus be 0, 3.3, or 5 V, depending
on card presence, card type, and
system configuration. The socket
interface outputs (listed in this table) will
operate at the voltage applied to these
pins, independent of the voltage
applied to other PD67XX pin groups.
18, 52
24, 52
88, 117
2
PWR
––
Table 2.
Socket Interface Pins (Sheet 4 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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