參數(shù)資料
型號(hào): UPD720122
廠商: NEC Corp.
英文描述: MOS Integrated Circuit
中文描述: 馬鞍山集成電路
文件頁(yè)數(shù): 32/82頁(yè)
文件大?。?/td> 650K
代理商: UPD720122
Data Sheet S16685EJ2V0DS
32
μ
PD720122
(TCB timing)
RDB
EP1_TCB
t
74
t
53
EP1_DRQB
EP1_DACKB
t
52
(Retransmission timing)
EP1_DACKB
RDB
EP1_DRQB
t
56
EP1_TCB
High level
EP1_STOPB
t
69
High level
D15 to D0
VALID
VALID
Last
1
Last
t
54
t
55
EP1_STOPB is not asserted in the
case of a full packet.
DMA transfer retry timing
If EP1_DACKB is deasserted without
RDB access after EP1_DRQB has
been deasserted, EP1_DRQB is
asserted again.
t
72
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