Datasheet

GND 1,34,35,68 Ground between the host and drive.
D0-15 2-6,30-32,
37-41,64-66
I/O Bi-directional data bus between the host and
drive.
CE1# 7 I Card Enable 1 enables even data bytes on D0-7.
A0-25 8,10-14,
19-29,
46-50,53-56
I Addresses A0-10 access data and registers
depending on the memory or I/O mode chosen by
the host. Addresses A11-24 are not used.
OE# 9 I Output Enable reads attribute- and memory-mode
data on D0-15.
WE# 15 I Write Enable reads attribute- and memory-mode
data on D0-15.
RDY/BSY#/ 16 O Indicates internally timed activities status. Drive
can accept host accesses when high. In memory
mode, RDY/BSY# does not reflect the ATA
status register’s BSY bit.
VCC 17,51 I +5 Volt DC supply to the drive.
VPP1,VPP2 18,52 N.C. +12 Volt DC programming supply is not required.
IOIS16#/WP 33 O Held low after reset initialization (Write Protect is
not supported).
CD1#,CD2# 36,67 O Card Detect pins, internally pulled low, allow the
host to determine that the drive is fully inserted in
the socket.
CE2# 42 I Card Enable 2 enables odd data bytes on D8-15.
RFSH# 43 N.C. Not used.
IORD# 44 I I/O Read gates data D0-15 during I/O-mode
access.
IOWR# 45 I I/O Write gates data D0-15 during I/O-mode
access.
Reserved 57 N.C. Reserved.
RESET 58 I Active-high power-on or hardware reset signal
resets drive registers.
WAIT# 59 O Signals that an in-progress host memory or I/O
cycle is not complete.
INPACK# 60 O When selected, the drive asserts Input
Acknowledge while responding to an I/O read
cycle.
REG# 61 I Common memory is accessed when high.
Attribute memory and ATA registers are accessed
when low.
BVD2 62 O 10K Pull-up to VCC.
BVD1/
STSCHG#
63 I/O Notifies the host of RDY/BSY# and Write
Protect state changes.
* Note All pin directions are referenced to drive
Card Configuration Registers
The table summarizes the drive’s four PCMCIA configuration registers. These read/write one-byte