参数资料
型号: VNC1L-1A
厂商: Future Technology Devices International Ltd
元件分类: 总线控制器
中文描述: UNIVERSAL SERIAL BUS CONTROLLER, PQFP48
封装: 7 X 7 MM, 0.50 MM PITCH, GREEN, LQFP-48
文件页数: 15/32页
文件大小: 672K
代理商: VNC1L-1A
Copyright 2009 Future Technology Devices International Limited
22
Document Reference No.: FT_000030
Vinculum VNC1L Embedded USB Host Controller IC Datasheet Version 2.02
Clearance No.: FTDI# 50
5.3.3 Write Transaction
When in parallel FIFO interface mode, the timing of a write operation on the FIFO interface is shown in
Figure 5.8 FIFO Write Cycle
Time
Description
Minimum
Maximum
Unit
T1
WR Active Pulse Width
50
-
ns
T2
WR to RD Pre-Charge Time
50
-
ns
T3
Data Setup Time before WR Inactive
20
-
ns
T4
Data Hold Time from WR Inactive
0
-
ns
T5
WR Inactive to TXE#
5
25
ns
T6
TXE Inactive After WR Cycle
80
-
ns
Table 5.11 FIFO Write Cycle Timings
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