參數(shù)資料
型號(hào): MVTX2604
廠商: Zarlink Semiconductor Inc.
英文描述: Managed 24-Port 10/100 Mb + 2 Port 1 Gb Ethernet Switch
中文描述: 管理24端口的10/100 Mb 2端口千兆以太網(wǎng)交換機(jī)1
文件頁數(shù): 47/173頁
文件大?。?/td> 2097K
代理商: MVTX2604
MVTX2604
Data Sheet
49
Zarlink Semiconductor Inc.
Eight clocks are required to cycle through the eight status bits for each port.
When the LED_SYN pulse is asserted, the LED interface will present 256 LED clock cycles with the clock cycles
providing information for the following ports.
Port 0 (10/100): cycles #0 to cycle #7
Port 1 (10/100): cycles#8 to cycle #15
Port 2 (10/100): cycle #16 to cycle #23
...
Port 22 (10/100): cycle #176 to cycle #183
Port 23 (10/100): cycle #184 to cycle #191
Port 24 (Gigabit 1): cycle #192 to cycle #199
Port 25 (Gigabit 2): cycle #200 to cycle #207
Byte 26 (additional status): cycle #208 to cycle #215
Byte 27 (additional status): cycle #216 to cycle #223
Cycles #224 to 256 present data with a value of zero.
The first two bits of byte 26 provides the speed information for the Gigabit ports while the remainder of byte 26 and
byte 27 provides bist status.
26[0]: G0 port (1= port 24 is operating at Gigabit speed; 0= speed is either 10 or 100 Mb/s depending on
speed bit of Port 24)
26[1]: G1 port (1= port 25 is operating at Gigabit speed; 0= speed is either 10 or 100 Mb/s depending on
speed bit of Port 25)
26[2]: initialization done
26[3]: initialization start
26[4]: checksum ok
26[5]: link_init_complete
26[6]: bist_fail
26[7]: ram_error
27[0]: bist_in_process
27[1]: bist_done
12.3 LED Interface Timing Diagram
The signal from the MVTX2604 to the LED decoder is shown in Figure 15.
Figure 15 - Timing Diagram of LED Interface
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