参数资料
型号: ZL50418GKG2
厂商: CONEXANT SYSTEMS
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, LEAD FREE, MS-034, HSBGA-553
文件页数: 19/155页
文件大小: 1928K
代理商: ZL50418GKG2
ZL50418
Data Sheet
115
Zarlink Semiconductor Inc.
12.3.6.27
QOSC09~11 - Classes Byte Limit Set 3
Accessed by CPU and serial interface (R/W):
C - QOSC09 – BYTE_C31 (CPU Address 520)
B - QOSC10 – BYTE_C32 (CPU Address 521)
A - QOSC11 – BYTE_C33 (CPU Address 522)
QOSC09 through QOSC011 represents one set of values A-C for a 10/100 port when using the Weighted Random
Early Drop (WRED) scheme.
Granularity when Delay bound is used: QOSC11: 128 bytes, QOSC10: 256 bytes, QOSC09: 512 bytes.
Granularity when WFQ is used: QOSC11: 512 bytes, QOSC10: 512 bytes, QOSC09: 512 bytes
12.3.6.28
QOSC12~17 - Classes Byte Limit Giga Port 1
Accessed by CPU, serial interface and I2C (R/W):
F - QOSC12 – BYTE_C2_G1 (I2C Address h0C7, CPU Address 523)
E - QOSC13 – BYTE_C3_G1 (I2C Address h0C8, CPU Address 524)
D - QOSC14 – BYTE_C4_G1 (I2C Address h0C9, CPU Address 525)
C - QOSC15 – BYTE_C5_G1 (I2C Address h0CA, CPU Address 526)
B - QOSC16 – BYTE_C6_G1 (I2C Address h0CB, CPU Address 527)
A - QOSC17 – BYTE_C7_G1 (I2C Address h0CC, CPU Address 528)
QOSC12 through QOSC17 represent the values A-F for Gigabit port 1. They are per-queue byte thresholds for
random early drop. QOSC17 represents A, and QOSC12 represents F.
Granularity when Delay bound is used: QOSC17 and QOSC16: 256 bytes, QOSC15 and QOSC14: 512 bytes,
QOSC13 and QOSC12: 1024 bytes.
Granularity when WFQ is used: QOSC17 to QOSC12: 1024 bytes
12.3.6.29
QOSC18~23 - Classes Byte Limit Giga Port 2
Accessed by CPU, serial interface and I2C (R/W)
F - QOSC18 – BYTE_C2_G2 (I2C Address h0CD, CPU Address 529)
E - QOSC19 – BYTE_C3_G2 (I2C Address h0CE, CPU Address 52a)
D - QOSC20 – BYTE_C4_G2 (I2C Address h0CF, CPU Address 52b)
C - QOSC21 – BYTE_C5_G2 (I2C Address h0D0, CPU Address 52c)
B - QOSC22 – BYTE_C6_G2 (I2C Address h0D1, CPU Address 52d)
A - QOSC23 – BYTE_C7_G2 (I2C Address h0D2, CPU Address 52e)
QOSC18 through QOSC23 represent the values A-F for Gigabit port 2. They are per-queue byte thresholds for
random early drop. QOSC23 represents A, and QOSC18 represents F.
Granularity when Delay bound is used: QOSC23 and QOSC22: 256 bytes, QOSC21 and QOSC20: 512 bytes,
QOSC19 and QOSC18: 1024 bytes.
Granularity when WFQ is used: QOSC23 to QOSC18: 1024 bytes
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