zl50416 Zarlink Semiconductor, zl50416 Datasheet - Page 41

• Manufacturer Part Number: zl50416
• Description: Managed 16-port 10/100 M + 2-port 1 G Ethernet Switch
• Manufacturer: Zarlink Semiconductor

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.
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Cycles #224 to 256 present data with a value of zero.
Byte 26 and byte 27 provides bist status
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11.3
The signal from the ZL50416 to the LED decoder is shown in Figure .
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 15 (10/100): cycle #120 to cycle #127
Reserved: cycle #128 to cycle #207
Byte 26 (additional status): cycle #208 to cycle #215
Byte 27 (additional status): cycle #216 to cycle #223
26[1:0]: Reserved
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
LED Interface Timing Diagram
Figure 15 - Timing Diagram of LED Interface
Zarlink Semiconductor Inc.
ZL50416
41
Data Sheet