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T
T
T
S
S
S
1
1
1
6
6
6
G
G
G
~
~
~
6
6
6
4
4
4
G
G
G
C
C
C
F
F
F
4
4
4
0
0
0
0
0
0
400X CompactFlash Card
Transcend Information Inc.
V1.0
39
Table: PC Card Memory Mode UDMA Function
-CE2
-CE1
-DMARQ
-INPACK
-DMACK
-REG
STOP
-HIO
W
-DMARDY
-HIOE
(R)-WAIT
(W)
STROBE
-WAIT
(R)-HIOE
(W)
DMA
CMD
A10-
A00
Operation
1 1 1 X X X X No XX Standby
X X
0 1 X X 1 YES
XX
Device UDMA Transfer Request
(Assert DMARQ)
X X 0 1 1 X 1 YES
XX Host Acknowledge Preparation
1 1 0 1 1 1 1 YES
Static
Host Acknowledge Preparation
1 1 0 0 1 1 1 YES
Static
DMA Acknowledge (Stopped)
1 1 0 0 0 0 1 YES
Static
Burst Initiation / Active
1 1 0 0 0 X / or \ YES
Static
Burst Transfer
1 1 0 0 0 1 0 or 1 RD
Static
Data In Burst Host Pause
1 1 0 0 0 0 0 or 1 RD
Static
Data In Burst Device Pause
1 1 0 0 0 1 0 or 1 WR
Static
Data Out Burst Device Pause
1 1 0 0 0 0 0 or 1 WR
Static
Data Out Burst Host Pause
1 1 1 0 0 0 0 or 1 RD
Static
Device Initiating BurstTermination
1 1 1 0 1 1 0 or 1 RD
Static
Host Acknowledement of Device
Initiated Burst Termination
1 1 0 0 1 0 0 or 1 YES
Static
Host Initiating BurstTermination
1 1 1 0 1 1 0 or 1 YES
Static
Device Acknowledging Host Initiated
Burst Termination
1 1 1 0 1 1 / YES
Static
Device Aligning STROBE to Asserted
before CRC Transfer
1 1 1 / 1 1 1 YES
Static
CRC Data Transfer for UDMA Burst
1 1 1 1 1 1 1 YES
Static
Burst Completed
Table: CompactFlash Storage Card Configuration Registers Decoding
-CE2
-CE1
-REG
-OE
-WE
A10
A9
A8-A4
A3
A2
A1
A0
SELECTED REGISTER
X 0 0 0
1
0
1
00 0
0
0
0
Configuration Option Reg Read
X 0 0 1
0
0
1
00 0
0
0
0
Configuration Option Reg Write
X 0 0 0
1
0
1
00 0
0
1
0
Card Status Register Read
X 0 0 1
0
0
1
00 0
0
1
0
Card Status Register Write
X 0 0 0
1
0
1
00 0
1
0
0
Pin Replacement Register Read
X 0 0 1
0
0
1
00 0
1
0
0
Pin Replacement Register Write
X 0 0 0
1
0
1
00 0
1
1
0
Socket and Copy Register Read
X 0 0 1
0
0
1
00 0
1
1
0
Socket and Copy Register Write