Epson S1R75801F00A Technical Manual page 102

S1R72803F00A
9.4.3.3 DMA Read
XHCS<1:0>(O)
HDA<2:0>(O)
HDMARQ(I)
XHDAMCK(O)
XHIOR(O)
HDD<15:0>(I)
Symbol
XHCS0,1 ↑→ XHDMACK ↓
T
341
Address set-up time
XHIOR ↑→ XHCS0,1 ↓
T
342
Address hold time
HDMARQ ↑→ XHDMACK ↓
T
343
XHDMACK response time
XHIOR ↓→ HDMARQ negate
T
344
HDMARQ hold time
XHDMACK ↓→ XHIOR ↓
T
345
XHIOR set-up time
XHIOR ↓→ XHIOR ↑
T
346
XHIOR assert pulse width
XHIOR ↑→ XHIOR ↓
T
347
XHIOR negate pulse width
XHIOR ↑→ XHDMACK ↑
T
348
XHIOR hold time
HDD→ XHIOR ↑
T
349
Data set-up time
XHIOR ↑→ HDD
T
34a
Data bus hold time
98
Direction of DATA Transfer
T
341
T
343
T T
345 346
Specification
EPSON
PORT → S1R72803 → HOST
T
344
T
347
T T
349 34a
Min. Typ.
60 –
25 –
0 –
0 –
0 –
– IDE
(AP+2)×20
– IDE
(AP+2)×20
20 –
10 –
0 –
T
342
T
348
Max. Unit
– ns
– ns
– ns
– ns
– ns
– ns
– ns
– ns
– ns
– ns