MVTX2603 Datasheet, PDF (38/109 Pages) Zarlink Semiconductor Inc – Unmanaged 24-Port 10/100 Mb + 2-Port 1 Gb Ethernet Switch

MVTX2603
Data Sheet
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 0): cycle #192 to cycle #199
Port 25 (Gigabit 1): 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 bit 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 MVTX2603 to the LED decoder is shown in Figure 17.
Figure 17 - Timing Diagram of LED Interface
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Zarlink Semiconductor Inc.