S1R72105 Technical Manual
Rev.1.0
EPSON
83
8.4.3.3 DMA Write (PSLV=0: Master mode)
Symbol Specification Min.
Typ.
Max.
Unit
T
333
XPWR
↓
→
PDREQ negate
PDREQ negate delay time
0
- 30 ns
T
334
XPDACK
↓
→
XPWR
↓
XPWR setup time
0
- 5 ns
T
335
XPWR
↓
→
XPWR
↑
XPWR assert pulse width
- (AP+2)
×
25 -
ns
T
336
XPWR
↑
→
XPWR
↓
XPWR negate pulse width
- (NP+2)
×
25 -
ns
T
337
XPWR
↑
→
XPDACK
↑
XPWR hold time
0
-
5 ns
T
338
XPWR
↓
→
PD
Data output delay time Note 1
0
-
25 ns
T
339
XPWR
↑
→
PD(Hi-Z)
Data bus negate time Note 1
5
-
40 ns
T
33A
PDREQ negate
→
XPDACK
↑
XPDACK setup time
5
-
- ns
Note 1: Data is output to PD only while both XPDACK and XPWR are asserted.
PD is always in Input mode except such time.
PDREQ(I)
XPDACK(0)
XPWR(0)
PD15-0(0)
T
334
T
335
T
336
T
333
T
33A
T
337
T
338
T
339
Direction of data transfer
Prosessor
S1R72105
HOST