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: 32/155页
文件大小: 1928K
代理商: ZL50418/GKC
ZL50418
Data Sheet
127
Zarlink Semiconductor Inc.
12.3.7.11
DEVICE Mode
CPU Address:h60a
Accessed by CPU and serial interface (R/W)
12.3.7.12
CHECKSUM - EEPROM Checksum
I2C Address FF, CPU Address:h60b
Accessed by CPU, serial interface and I2C (R/W)
This register is used in unmanaged mode only. Before requesting that the ZL50418 updates the EEPROM device,
the correct checksum needs to be calculated and written into this checksum register. The checksum formula is:
FF
Σ
i2C register = 0
i = 0
When the ZL50418 boots from the EEPROM the checksum is calculated and the value must be zero. If the
checksum is not zeroed the ZL50418 does not start and pin CHECKSUM_OK is set to zero.
Bit [0]
Reserved(Default 0)
Bit [2:1]:
Hold time for LED signal (Default 00)
00=8 msec
01=16 msec
10=32 msec
11=64 msec
Bit [4:3]:
LED clock frequency (Default 0)
For 100MHz SCLK
00 = 100MHz/8 = 12.5 MHz
01 = 100MHz/16 = 6.25 MHz
10 = 100MHz/32 = 3.125 MHz 11 = 100MHz/64 = 1.5625 MHz
For 125 MHz SCLK
00 = 125MHz/64 = 1953 KHz 01 = 125MHz/128 = 977 KHz
10 = 125MHz/512 = 244 KHz 11 = 125MHz/1024 = 122 KHz
Bit [7:5]:
Reserved. Must be set to ‘0’ (Default 0)
74
3
2
1
0
Device ID
LgFrm
Bit [1:0]:
Reserved. Must be set to ‘0’ (Default 0)
Bit [2]:
Support < = 1536 frames
0: < = 1518 bytes (< = 1522 bytes with VLAN tag) (Default)
1: < = 1536 bytes
Bit [3]:
Reserved. Must be set to ‘0’ (Default 0)
Bit [7:4]:
DEVICE ID (Default 0). This is for stacking operation. This is the stack ID
for loop topology.
Bit [7:0]:
(Default 0)
相关PDF资料
PDF描述
ZL50418GKG2 DATACOM, LAN SWITCHING CIRCUIT, PBGA553
ZLW-2-B 1 MHz - 1000 MHz RF/MICROWAVE DOUBLE BALANCED MIXER, 9.5 dB CONVERSION LOSS-MAX
ZMG71W SINGLE COLOR LED, GREEN
ZMM5228/D1 3.9 V, 0.5 W, SILICON, UNIDIRECTIONAL VOLTAGE REGULATOR DIODE
ZMM5242/D1 12 V, 0.5 W, SILICON, UNIDIRECTIONAL VOLTAGE REGULATOR DIODE
相关代理商/技术参数
参数描述
ZL51B 制造商:YEASHIN 制造商全称:YEASHIN 功能描述:500 mW DO-35 Hermetically Sealed Glass Zener Voltage Regulators
ZL56B 制造商:YEASHIN 制造商全称:YEASHIN 功能描述:500 mW DO-35 Hermetically Sealed Glass Zener Voltage Regulators
ZL5V1B 制造商:YEASHIN 制造商全称:YEASHIN 功能描述:500 mW DO-35 Hermetically Sealed Glass Zener Voltage Regulators
ZL5V6B 制造商:YEASHIN 制造商全称:YEASHIN 功能描述:500 mW DO-35 Hermetically Sealed Glass Zener Voltage Regulators
ZL60001 制造商:ZARLINK 制造商全称:Zarlink Semiconductor Inc 功能描述:High speed 2.5 Gbps 850 nm VCSEL