參數(shù)資料
型號: 935270538118
廠商: NXP SEMICONDUCTORS
元件分類: 總線控制器
英文描述: UNIVERSAL SERIAL BUS CONTROLLER, PQFP64
封裝: 10 X 10 MM, 1.40 MM HEIGHT, PLASTIC, MS-026, SOT-314-2, LQFP-64
文件頁數(shù): 76/93頁
文件大?。?/td> 2118K
代理商: 935270538118
Philips Semiconductors
ISP1160
Embedded USB Host Controller
Product data
Rev. 03 — 27 February 2003
78 of 89
9397 750 10765
Koninklijke Philips Electronics N.V. 2003. All rights reserved.
16.3.2
Burst mode DMA timing
[1]
tSLAL + (4 or 8)TRC +tDS
Fig 34. Single-cycle DMA timing.
004aaa117
DREQ
DACK
D[15:0]
(read)
D[15:0]
(write)
RD or WR
tDS
tAHRH
TDC
data
valid
data
valid
tALRL
tRHAL
tWHD
tWSU
tRLDV
tRHDZ
tSHAH
Table 76:
Dynamic characteristics: burst mode DMA timing
Symbol
Parameter
Conditions
Min
Typ
Max
Unit
Read/write timing (for 4-cycle and 8-cycle burst mode)
tRLRH
WR/RD LOW pulse width
42
-
ns
tRHRL
WR/RD HIGH to next WR/RD LOW
60
-
ns
TRC
WR/RD cycle
102
-
ns
tSLRL
RD/WR LOW to DREQ LOW
22
-
64
ns
tSHAH
RD/WR HIGH to DACK HIGH
0
-
ns
tSLAL
DREQ HIGH to DACK LOW
0
-
ns
TDC
DREQ cycle
--ns
tDS(read)
DREQ pulse spacing (read)
4-cycle burst mode
105
-
ns
tDS(read)
DREQ pulse spacing (read)
8-cycle burst mode
150
-
ns
tDS(write)
DREQ pulse spacing (write)
4-cycle burst mode
72
-
ns
tDS(write)
DREQ pulse spacing (write)
8-cycle burst mode
167
-
ns
tRLIS
RD/WR LOW to EOT LOW
0
-
ns
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