參數(shù)資料
型號(hào): DP83848YB/NOPB
廠商: National Semiconductor
文件頁(yè)數(shù): 54/86頁(yè)
文件大?。?/td> 0K
描述: IC TXRX ETHERNET PHYTERA 48-LQFP
標(biāo)準(zhǔn)包裝: 250
類型: 收發(fā)器
驅(qū)動(dòng)器/接收器數(shù): 1/1
規(guī)程: 以太網(wǎng)
電源電壓: 3 V ~ 3.6 V
安裝類型: 表面貼裝
封裝/外殼: 48-LQFP 裸露焊盤
供應(yīng)商設(shè)備封裝: 48-LQFP 裸露焊盤(7x7)
包裝: 帶卷 (TR)
其它名稱: DP83848YBTR
57
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7.2.9 PHY Control Register (PHYCR)
Table 29. PHY Control Register (PHYCR), address 0x19
Bit
Bit Name
Default
Description
15
MDIX_EN
Strap, RW
Auto-MDIX Enable:
1 = Enable Auto-neg Auto-MDIX capability.
0 = Disable Auto-neg Auto-MDIX capability.
The Auto-MDIX algorithm requires that the Auto-Negotiation En-
able bit in the BMCR register to be set. If Auto-Negotiation is not
enabled, Auto-MDIX should be disabled as well.
14
FORCE_MDIX
0, RW
Force MDIX:
1 = Force MDI pairs to cross.
(Receive on TPTD pair, Transmit on TPRD pair)
0 = Normal operation.
13
PAUSE_RX
0, RO
Pause Receive Negotiated:
Indicates that pause receive should be enabled in the MAC. Based
on ANAR[11:10] and ANLPAR[11:10] settings.
This function shall be enabled according to IEEE 802.3 Annex 28B
Table 28B-3, “Pause Resolution”, only if the Auto-Negotiated High-
est Common Denominator is a full duplex technology.
12
PAUSE_TX
0, RO
Pause Transmit Negotiated:
Indicates that pause transmit should be enabled in the MAC. Based
on ANAR[11:10] and ANLPAR[11:10] settings.
This function shall be enabled according to IEEE 802.3 Annex 28B
Table 28B-3, “Pause Resolution”, only if the Auto-Negotiated High-
est Common Denominator is a full duplex technology.
11
BIST_FE
0, RW/SC
BIST Force Error:
1 = Force BIST Error.
0 = Normal operation.
This bit forces a single error, and is self clearing.
10
PSR_15
0, RW
BIST Sequence select:
1 = PSR15 selected.
0 = PSR9 selected.
9
BIST_STATUS
0, LL/RO
BIST Test Status:
1 = BIST pass.
0 = BIST fail. Latched, cleared when BIST is stopped.
For a count number of BIST errors, see the BIST Error Count in the
CDCTRL1 register.
8
BIST_START
0, RW
BIST Start:
1 = BIST start.
0 = BIST stop.
7
BP_STRETCH
0, RW
Bypass LED Stretching:
This will bypass the LED stretching and the LEDs will reflect the in-
ternal value.
1 = Bypass LED stretching.
0 = Normal operation.
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