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Major Chips Description 2-67
Table 2-7 CL-PD6832 Pin Descriptions
Pin Name Description Pin No.
(socket
A)
Pin No.
(socket
B)
I/O Power
-IORD/
CAD13
I/O Read: This output goes active (low) for
l/O reads from the socket to the CL-
PD6832. In CardBus mode, this pin is the
CardBus address/data bit 13.
78 154 I/O 2 or 3
-IOWR/
CAD15
I/O Write: This output goes active (low) for
l/O writes from the CL-PD6832 to the
socket. In CardBus mode, this pin is the
CardBus address/data bit 15.
81 156 I/O 2 or 3
WP/
-IOIS16/
CCLKRUN#
Write Protect / I/O Is 16-Bit: In Memory
Card Interface mode, this input is
interpreted as the status of the write protect
switch on the PCMCIA card. In l/O Card
Interface mode, this input indicates the size
of the l/O data at the current address on the
PCMCIA card. In CardBus mode, this pin is
the CardBus CLKRUN# signal, which starts
and stops the CardBus clock CCLK.
125 201 I/O-
PU
2 or 3
-INPACK/
CREQ#
Input Acknowledge: The -INPACK function
is not applicable in PCI bus environments.
However, for compatibility with other Cirrus
Logic products, this pin should be
connected to the PCMCIA socket's -
INPACK pin. In CardBus mode, this pin is
the CardBus REQ# signal.
110 186 I-PU 2 or 3
RDY/
-IREQ/
CINT#
Ready / Interrupt Request: In Memory
Card Interface mode, this input indicates to
the CL-PD6832 that the card is either ready
or busy. In l/O Card Interface mode, this
input indicates a card interrupt request. In
CardBus mode, this pin is the CardBus
Interrupt Request signal. This signal is
active-low and level-sensitive.
91 167 I-PU 2 or 3
-WAIT/
CSERR#
Wait: This input indicates a request by the
card to the CL-PD6832 to halt the cycle in
progress until this signal is deactivated. In
CardBus mode, this pin is the CardBus
SERR# signal.
108 184 I-PU 2 or 3
-CD[2:1]/
CCD[2:1]#
Card Detect: These inputs indicate to the
CL-PD6832 that a card is in the socket.
They are internally pulled high to the voltage
of the +5V power pin. In CardBus mode,
these inputs are used in conjunction with
CVS[2:1] to detect the presence and type of
card.
126, 61 202,
136
I-PU 1