參數資料
型號: DJIXE972MQEA4
廠商: Intel Corp.
英文描述: Single-Port 10/100 Mbps PHY Transceiver
中文描述: 單端口10/100 Mbps的物理層收發(fā)器
文件頁數: 32/92頁
文件大小: 666K
代理商: DJIXE972MQEA4
Intel
LXT972M Single-Port 10/100 Mbps PHY Transceiver
32
Datasheet
Document Number: 302875-005
Revision Date: 27-Oct-2005
During a software reset, bit settings in
Table 45, “Auto-Negotiation Advertisement Register -
Address 4, Hex 4” on page 79
are not re-read from the LXT972M Transceiver configuration
pins. Instead, the bit settings revert to the values that were read in during the last hardware
reset. Therefore, any changes to pin values made since the last hardware reset are not detected
during a software reset.
During a software reset, registers are available for reading. To see when the LXT972M
Transceiver has completed reset, the reset bit can be polled (that is, Register bit 0.15 = 0).
For pin settings used during a hardware reset, see
Section 5.4.4, “Hardware Configuration
Settings”
. During a hardware reset, configuration settings for auto-negotiation and speed are read
in from pins, and register information is unavailable for 1 ms after de-assertion of the reset.
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