Epson S1R75801F00A Technical Manual page 104

S1R72803F00A
9.4.3.5 Ultra-DMA Read
Direction of DATA Transfer
XHCS<1:0>(O)
HDA<2:0>(O)
HDMARQ(I)
XHDAMCK(O)
XHIOW(O)
(STOP)
XHIOR(O)
(HDMARDY)
HIORDY(I)
(DSTROBE)
HDD<15:0>(I)
Symbol
XHCS0,1 ↑→ XHDMACK ↓
T
361
Address setup time
HDMARQ ↑→ XHDMACK ↓
T
362
XHDMACK response time
HDMACK ↓→ HIOR,XHIOW↑
T
363
Envelope time
T HDD→HIORDY
364
Data setup time
HIORDY → HDD
T
365
Data hold time
HIORDY → HIORDY
T
366
HIORDY cycle time
HIORDY → HIORDY
T
367
HIORDY cycle time x 2
XHIOR ↑→ HIORDY
T
369
Last strobe time
100
PORT
Initiating
T361
T362
T363
T363
Specification
EPSON
S1R72803 HOST
T364 T365
Min.
20
0
20
6
6
25
57
–
Device Pausing
T369
T367
T366 T366
Typ. Max. Unit
– –
– –
– 55
– –
– –
– –
– –
– 60
ns
ns
ns
ns
ns
ns
ns
ns