參數(shù)資料
型號: KSZ8841-PMQL-EVAL
廠商: Micrel Inc
文件頁數(shù): 16/74頁
文件大?。?/td> 0K
描述: BOARD EVALUATION KSZ8841-PMQL
標(biāo)準(zhǔn)包裝: 1
主要目的: 接口,以太網(wǎng)控制器(PHY 和 MAC)
嵌入式:
已用 IC / 零件: KSZ8841-PMQL
主要屬性: 1 個端口,100BASE-TX/10BASE-T
次要屬性: PCI 接口,LinkMD 線纜診斷
已供物品:
產(chǎn)品目錄頁面: 1114 (CN2011-ZH PDF)
相關(guān)產(chǎn)品: 576-2118-ND - IC MAC CTRLR 32BIT PCI 128-PQFP
576-2117-ND - IC MAC CTRLR 32BIT 128-PQFP
其它名稱: 576-1633
Micrel, Inc.
KSZ8841-PMQL
October 2007
23
M9999-100407-1.5
Bit
Name
Description
3
PME_CK
PME Clock
When this bit is a “1”, it indicates that the function relies on the presence of the PCI
clock for PME# operation.
When this bit is a “0”, it indicates that no PCI clock is required for the function to
generate PME#. This bit is loaded to bit 3 of PMCR register and bit 19 of CCID
register.
2 - 0
PCI: PME_VER
PCI: Power Management PCI Version. These bits are loaded to bits [2-0] of the
PMCR register and bits [18-16] of the CCID register.
Table 3. KSZ8841-PMQL ConfigParam in EEPROM Format
Loopback Support
The KSZ8841-PMQL provides loopback support for remote diagnostic failure. In loopback mode, the speed at the PHY
port will be set to 100BASE-TX full-duplex mode. The KSZ8841-PMQL only supports Near-end (Remote) Loopback.
Near-end (Remote) loopback is conducted at PHY port 1 of the KSZ8841-PMQL. The loopback path starts at the PHY
ports receive inputs (RXPx/RXMx), wraps around at the same PHY port’s PMD/PMA, and ends at the PHY ports
transmit outputs (TXPx/TXMx).
Bit [1] of register P1PHYCTRL is used to enable near-end loopback for port 1. Alternatively, Bit [9] of register
P1SCSLMD can also be used to enable near-end loopback. The port’s near-end loopback path is illustrated in the
following Figure 4.
PCI Bus I/F Unit
RX/TX DMA
8K RX/TX Buffer
MAC1
PCS1
PMD1/PMA1
RXP1 /
RXM1
TXP1 /
TXM1
PHY Port 1
Near-end (remote)
Loopback
Figure 6. Port 1 Near-End (Remote) Loopback Path
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