TS2GDOM40V TRANSCEND [Transcend Information. Inc.], TS2GDOM40V Datasheet - Page 36

• Manufacturer Part Number: TS2GDOM40V
• Description: 40-Pin IDE Flash Module
• Manufacturer: TRANSCEND [Transcend Information. Inc.]

Initiating an Ultra DMA Data-In Burst
(a) An Ultra DMA Data-In burst is initiated by following the steps lettered below. The timing diagram is
(b) The following steps shall occur in the order they are listed unless otherwise specifically allowed:
(c) The host shall keep -DMACK in the negated state before an Ultra DMA data burst is initiated.
(d) The device shall assert DMARQ to initiate an Ultra DMA data burst. After assertion of DMARQ the
(e) Steps (c), (d), and (e) may occur in any order or at the same time. The host shall assert STOP.
(f) The host shall negate -HDMARDY.
(g) In True IDE mode, the host shall not assert -CS0, -CS1 and A[02:00].
(h) Steps (c), (d), and (e) shall have occurred at least t
(i) The host shall release D[15:00] within t
(j) The device may assert DSTROBE t
(k) The host shall negate STOP and assert -HDMARDY within t
(l) The device shall drive D[15:00] no sooner than t
(m) The device shall drive the first word of the data transfer onto D[15:00]. This step may occur when the
(n) To transfer the first word of data the device shall negate DSTROBE within t
shown in below: Ultra DMA Data-In Burst Initiation Timing. The associated timing parameters are
specified in Page 12: Ultra DMA Data Burst Timing Requirements and are described in Page 13: Ultra
DMA Data Burst Timing Descriptions.
device shall not negate DMARQ until after the first negation of DSTROBE.
shall keep -DMACK asserted until the end of an Ultra DMA data burst.
True IDE mode, once the device has driven DSTROBE, the device shall not release DSTROBE until
after the host has negated -DMACK at the end of an Ultra DMA data burst.
negating STOP and asserting -HDMARDY, the host shall not change the state of either signal until
after receiving the first transition of DSTROBE from the device (i.e., after the first data word has been
received).
STOP, and asserted -HDMARDY.
device first drives D[15:00] in step (j).
negated STOP and asserted -HDMARDY. The device shall negate DSTROBE no sooner than t
after driving the first word of data onto D[15:00].
Transcend Information Inc.
T
1
T
1
T
1
2
r
2
r
2
r
a
a
a
8
8
8
n
n
n
M
M
M
s
s
s
B
B
B
c
c
c
e
e
e
~
~
~
n
n
n
8
8
d
8
d
d
G
G
G
4
4
4
B
B
B
0
0
0
-
-
-
P
P
P
i
i
i
n
n
n
I
I
I
D
D
D
E
E
E
ZIORDY
F
F
F
l
l
l
a
AZ
a
a
s
s
s
after asserting -DMACK.
after the host has asserted -DMACK. While operating in
h
h
h
M
M
M
36
ZAD
o
o
o
d
d
d
after the host has asserted -DMACK, negated
ACK
u
u
u
l
l
l
before the host asserts -DMACK. The host
e
e
e
ENV
after asserting -DMACK. After
FS
after the host has
Ver 1.7
DVS