Fujitsu MHE2043AT Product Manual page 162

5) The host shall assert STOP no sooner than t
6) The device shall negate DMARQ within t
7) If DSTROBE is negated, the device shall assert DSTROBE within t
8) The device shall release DD (15:0) no later than t
9) The host shall drive DD (15:0) no sooner than t
10) If the host has not placed the result of its CRC calculation on DD (15:0)
11) The host shall negate DMACK- no sooner than t
12) The device shall latch the host's CRC data from DD (15:0) on the
13) The device shall compare the CRC data received from the host with the
14) The device shall release DSTROBE within t
15) The host shall neither negate STOP nor assert HDMARDY- until at least
16) The host shall not assert DIOR-, CS0-, CS1-, DA2, DA1, or DA0 until at
C141-E057-01EN
HDMARDY-. The host shall not negate STOP again until after the Ultra
DMA burst is terminated.
STOP. The device shall not assert DMARQ again until after the Ultra
DMA burst is terminated.
after the host has asserted STOP. No data shall be transferred during this
assertion. The host shall ignore this transition on DSTROBE.
DSTROBE shall remain asserted until the Ultra DMA burst is
terminated.
DMARQ.
negated DMARQ. For this step, the host may first drive DD (15:0) with
the result of its CRC calculation (see 5.5.5).
since first driving DD (15:0) during (9), the host shall place the result of
its CRC calculation on DD (15:0) (see 5.5.5).
asserted DSTROBE and negated DMARQ and the host has asserted
STOP and negated HDMARDY-, and no sooner than t
places the result of its CRC calculation on DD (15:0).
negating edge of DMACK-.
results of its own CRC calculation. If a miscompare error occurs during
one or more Ultra DMA burst for any one command, at the end of the
command, the device shall report the first error that occurred (see 5.5.5).
DMACK-.
t after the host has negated DMACK-.
ACK
least t after negating DMACK.
ACK
5.5 Ultra DMA Feature Set
after negating
RP
after the host has asserted
LI
after negating
AZ
after the device has
ZAH
after the device has
MLI
after the host
DVS
after the host negates
IORDYZ
LI
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