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參數(shù)資料
| 型號： | AX88172A |
| 廠商： | ASIX Electronics Corporation |
| 英文描述： | USB 2.0 to 10/100M Fast Ethernet Controller |
| 中文描述： | USB 2.0至個10/100M快速以太網(wǎng)控制器 |
| 文件頁數(shù)： | 35/45頁 |
| 文件大?。?/td> | 778K |
| 代理商： | AX88172A |
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ASIX ELECTRONICS CORPORATION
35
AX88772A/AX88172A
Low-pin-count
USB 2.0 to 10/100M Fast Ethernet Controller
9.4.9 SPI Interface Timing
Note: Above diagram only shows setup and hold time relationship of SPI pins in Mode 0. For the remaining 3 modes,
clock polarity is reversed.
SPI Master Controller Timing Table:
Symbol
Description
Fclk
SPI_SCLK clock frequency.
Min
-
Typ
Max
5
Unit
MHz
(Note 3)
Fsys_clk/
(SPIBRR+1)*2
0.5
Tl
Setup time of SPI_SS to the first SPI_SCLK edge.
-
-
Tclk
(Note 3)
Tclk
Tsys_clk
(Note 4)
Tsys_clk
Tsys_clk
Th
Tdly
Hold time of SPI_SS after the last SPI_SCLK edge.
SPI_MOSI data valid time after SPI_SCLK edge.
-
-
0.5
-
-
1
Dsu
Dhd
tl
SPI_MISO data setup time before SPI_SCLK edge.
SPI_MISO data hold time after SPI_SCLK edge.
Minimum idle time between transfers (minimum
SPI_SS high time).
Internal time base period.
2
4
-
-
-
-
Note 5
-
0.5
-
Tclk
Note 3: Fsys_clk is the operating system clock frequency 30Mhz. The SPIBRR is SPI Baud Rate Register.
Tclk = 1/Fclk.
Note 4: Tsys_clk =1/ Fsys_clk =33.33 ns.
Note 5: It will be much greater than 22us because several factors can influence this parameter, such as USB system
utilization, the CBW structure, and High/Full speed ,etc.
相關PDF資料 |
PDF描述 |
|---|---|
| AX88172ATF | USB 2.0 to 10/100M Fast Ethernet Controller |
| AX88772A | USB 2.0 to 10/100M Fast Ethernet Controller |
| AX88772ALF | USB 2.0 to 10/100M Fast Ethernet Controller |
| AX88172L | USB to Fast Ethernet/HomePNA Controller |
| AX88180 | High-Performance Non-PCI 32-bit 10/100/1000M Gigabit Ethernet Controller |
相關代理商/技術參數(shù) |
參數(shù)描述 |
|---|---|
| AX88172ATF | 制造商:ASIX 制造商全稱:ASIX 功能描述:USB 2.0 to 10/100M Fast Ethernet Controller |
| AX88172L | 制造商:ASIX 制造商全稱:ASIX 功能描述:USB to Fast Ethernet/HomePNA Controller |
| AX88178 | 制造商:ASIX 制造商全稱:ASIX 功能描述:USB to 10/100/1000 Gigabit Ethernet/HomePNA Controller |
| AX88178A | 制造商:ASIX 制造商全稱:ASIX 功能描述:AX88179 -- USB3.0 轉 10/100/1000M 千兆以太網(wǎng)控制芯片 |
| AX88178L | 制造商:ASIX 制造商全稱:ASIX 功能描述:USB to 10/100/1000 Gigabit Ethernet/HomePNA Controller |
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