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Table 11: Signal Description
Signal Name
Dir.
Pin
Description
These address lines along with the – REG signal are used to
select the following: The I/O port address registers within the
A10 to A0
(PC Card Memory Mode)
I
CompactFlash Storage Card, the memory mapped
port address registers within the CompactFlash Storage Card, a
8,10,11,12, byte in the card ’ s information structure and its
14,15,16,17, configuration control and status registers.
A10 to A0
(PC Card I/O Mode)
A2 to A0
(True IDE Mode)
BVD1
(PC Card Memory Mode)
18,19,20
This signal is the same as the PC Card Memory Mode signal.
In True IDE Mode, only A[2:0] are used to select the one of eight
registers in the Task File, the remaining address lines should be
grounded by the host.
This signal is asserted high, as BVD1 is not supported.
This signal is asserted low to alert the host to changes in the
– STSCHG
(PC Card I/O Mode)
I/O
46
READY and Write Protect states, while the I/O interface is
configured. Its use is controlled by the Card Config and Status
Register.
– PDIAG
(True IDE Mode)
BVD2
(PC Card Memory Mode)
In the True IDE Mode, this input / output is the Pass Diagnostic
signal in the Master / Slave handshake protocol.
This signal is asserted high, as BVD2 is not supported.
– SPKR
(PC Card I/O Mode)
– DASP
(True IDE Mode)
I/O
45
This line is the Binary Audio output from the card. If the Card
does not support the Binary Audio function, this line should be
held negated.
In the True IDE Mode, this input/output is the Disk Active/Slave
Present signal in the Master/Slave handshake protocol.
These lines carry the Data, Commands and Status information
D15-D00 (PC Card Memory Mode)
31, 30, 29, between the host and the controller. D00 is the LSB of the Even
28, 27, 49, Byte of the Word. D08 is the LSB of the Odd Byte of the Word.
D15-D00 (PC Card I/O Mode)
D15-D00 (True IDE Mode)
GND
(PC Card Memory Mode)
I/O
48, 47, 6, This signal is the same as the PC Card Memory Mode signal.
5, 4, 3, 2, In True IDE Mode, all Task File operations occur in byte mode
23, 22, 21 on the low order bus D[7:0] while all data transfers are 16 bit
using D[15:0].
Ground.
GND
(PC Card I/O Mode)
GND
(True IDE Mode)
– INPACK
(PC Card Memory Mode)
1, 50
Same for all modes.
Same for all modes.
This signal is not used in this mode.
The Input Acknowledge signal is asserted by the CompactFlash
– INPACK
(PC Card I/O Mode)
O
43
Storage Card when the card is selected and
responding to an I/O read cycle at the address that is on the
address bus. This signal is used by the host to control the
enable
of any input data buffers between the CompactFlash Storage
Card and the CPU.
Swissbit AG
Industriestrasse 4
Swissbit reserves the right to change products or specifications without notice.
Revision: 1.51
CH-9552 Bronschhofen
Switzerland
www.swissbit.com
industrial@swissbit.com
C-300_data_sheet_CF-HxBK_Rev151.doc
Page 15 of 99
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