spd6722qcce Intel Corporation, spd6722qcce Datasheet - Page 23
spd6722qcce
Manufacturer Part Number
spd6722qcce
Description
Isa-to-pc-card Pcmcia Controllers
Manufacturer
Intel Corporation
Datasheet
1.SPD6722QCCE.pdf
(138 pages)
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Datasheet
BVD2/
-SPKR/
-LED †
BVD1/
-STSCHG/
-RI †
SOCKET_
VCC
Pin Name
1.
2.
1
A_A[25:0] and B_A[25:0] are the independent address buses to the sockets.
2
Table 2. Socket Interface Pins (Sheet 4 of 4)
To differentiate the sockets, all PD6722 pin names have either A_ or B_ prepended to the pin names indicated. For example,
When a socket is configured as an ATA drive interface, socket interface pin functions change. See
1
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.
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
on page
Connect these pins to the V
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.
74).
“Bit 7 — IRQ15 Is RI Out”
Description
2
CC
supply
PD6710
ISA-to-PC-Card (PCMCIA) Controllers — PD6710/’22
18, 52
60
62
Pin Number
Socket A
24, 52
59
61
PD6722
Socket B
88, 117
122
124
Qty.
1
1
2
Table 17 on page
PWR
I-PU
I-PU
I/O
2 or 3
2 or 3
Pwr.
–
88.
Drive
–
–
–
23
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