S1R72104 Technical Manual
Rev.1.1
EPSON
51
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.
Direction of data transfer
Prosessor
S1R72104
HOST
PDREQ(I)
XPDACK(0)
XPWR(0)
PD15-0(0)
T
334
T
337
T
336
T
333
T
33A
T
335
T
338
T
339