參數(shù)資料
型號(hào): UPD720122
廠(chǎng)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): 50/82頁(yè)
文件大?。?/td> 650K
代理商: UPD720122
Data Sheet S16685EJ2V0DS
50
μ
PD720122
(Retransmission timing)
EP1_DACKB
EP1_RDB
EP1_DRQB
L16t
56
EP1_TCB
High level
EP1_STOPB
L16t
69
High level
LD15 to LD0
VALID
VALID
Last
1
Last
L16t
54
L16t
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.
However, note that the retry operation
cannot be performed in the 8-bit mode.
L16t
72
(If EP1_TCB is input when retransmission is executed)
EP1_RDB
EP1_TCB
L16t
53
EP1_DRQB
EP1_DACKB
L16t
69
L16t
52
L16t
45
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