参数资料
型号: ZL50418/GKC
厂商: ZARLINK SEMICONDUCTOR INC
元件分类: 网络接口
英文描述: DATACOM, LAN SWITCHING CIRCUIT, PBGA553
封装: 37.50 X 37.50 MM, 2.33 MM HEIGHT, MS-034, HSBGA-553
文件页数: 91/155页
文件大小: 1928K
代理商: ZL50418/GKC
ZL50418
Data Sheet
40
Zarlink Semiconductor Inc.
A low cost external device (44 pin PAL) is used to decode the serial data and to drive an LED array for display. This
device can be customized for different needs.
2.6.1
Port Status
In the ZL50418, each port has 8 status indicators, each represented by a single bit. The 8 LED status indicators
are:
Bit 0: Flow control
Bit 1: Transmit data
Bit 2: Receive data
Bit 3: Activity (where activity includes either transmission or reception of data)
Bit 4: Link up
Bit 5: Speed (1= 100 Mb/s; 0= 10 Mb/s)
Bit 6: Full-duplex
Bit 7: Collision
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 (10/100M): cycles #0 to cycle #7
Port 1 (10/100M): cycles#8 to cycle #15
...
Port 14 (10/100M): cycle #112 to cycle #119
Port 15 (10/100M): cycle #120 to cycle #127
RSVD: cycle #128 to cycle #191
Gigabit Port 0: cycle #192 to cycle #199
Gigabit Port 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 bist status.
26[0]: G0 port (1= port G0 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 G1 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
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