參數(shù)資料
型號(hào): GT-48208
廠商: Galileo Technology Services, LLC
英文描述: Advanced Switched Ethernet Controllers for 10+10/100 BaseX(高級(jí)交換式 10+10/100 BaseX以太網(wǎng)控制器)
中文描述: 先進(jìn)的交換式以太網(wǎng)控制器的10 10/100 BaseX(高級(jí)交換式10 10/100 BaseX以太網(wǎng)控制器)
文件頁數(shù): 29/135頁
文件大小: 1619K
代理商: GT-48208
GT-482xx Switched Ethernet Controllers for 10+10/100 BaseX
GALI
LEO
TECHNOLOGY
CONFI
D
ENTI
AL
--
DO
NOT
REPRODUCE
124
Revision 1.2
Notes:
1. All outputs are specified for 50pF load.
2. The expansion MII may run up to 60MHz, but must be lower then AClk by 3MHz.
Figure 28: Serial Clock Waveform (SClk)
tov
LedData,
LedStrobe
Output valid delay with respect to Led-
Clk.
relation between LEDClk and these sig-
nals.
3 * AClk clock
cycles) + 2ns
3 * AClk clock
cycles) + 10ns
(or more for
margin)
nS
tsu
MDIO
Setup time for MDIO relative to MDC
40
nS
thd
MDIO
Hold time for MDIO relative to MDC
10
1
nS
tov
MDIO
MDIO output valid from MDC
2
50
nS
Table 75: Serial Clock Timings (Tc= 0-70C; Vcc = +3.3V +/- 5%)
Sy mbol
Signals
D esc r iption
M i n
M ax
U nit
t1
SClk
Rise Time
2
ns
t2
SClk
Fall Time
2
ns
SClk
Frequency Stability
+/-50
PPM
Table 74: MII, LED and MDC/MDIO Timings (Tc= 0-70C; Vcc = +3.3V +/- 5%)
Symbol
Signals
Description
Min
Max
Unit
SClk
Voh
Vol
t1
t2
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