參數(shù)資料
型號(hào)： DP83848HSQ/NOPB
廠商： National Semiconductor
文件頁(yè)數(shù)： 53/82頁(yè)
文件大?。?/td> 0K
描述： IC TXRX ETHERNET PHYTER 40-LLP
產(chǎn)品培訓(xùn)模塊： PHYTER® Family
標(biāo)準(zhǔn)包裝： 1
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： 40-WFQFN 裸露焊盤
供應(yīng)商設(shè)備封裝： 40-LLP-EP（6x6）
包裝： 剪切帶 (CT)
配用： DP83848H-MAU-EK-ND - BOARD EVALUATION DP83848H
其它名稱： *DP83848HSQ/NOPB
DP83848HSQCT
www.national.com
56
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83
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8H
7.2.8 10Base-T Status/Control Register (10BTSCR)
Table 28. 10Base-T Status/Control Register (10BTSCR), address 0x1A
Bit
Bit Name
Default
Description
15
RESERVED
0, RW
RESERVED:
Must be zero.
14:12
RESERVED
0, RW
RESERVED:
Must be zero.
11:9
SQUELCH
100, RW
Squelch Configuration:
Used to set the Squelch ‘ON’ threshold for the receiver.
Default Squelch ON is 330mV peak.
8
LOOPBACK_10_D
IS
0, RW
In half-duplex mode, default 10BASE-T operation loops Transmit
data to the Receive data in addition to transmitting the data on the
physical medium. This is for consistency with earlier 10BASE2 and
10BASE5 implementations which used a shared medium. Setting
this bit disables the loopback function.
This bit does not affect loopback due to setting BMCR[14].
7
LP_DIS
0, RW
Normal Link Pulse Disable:
1 = Transmission of NLPs is disabled.
0 = Transmission of NLPs is enabled.
6
FORCE_LINK_10
0, RW
Force 10Mb Good Link:
1 = Forced Good 10Mb Link.
0 = Normal Link Status.
5
RESERVED
0, RW
RESERVED:
Must be zero.
4POLARITY
RO/LH
10Mb Polarity Status:
This bit is a duplication of bit 12 in the PHYSTS register. Both bits
will be cleared upon a read of 10BTSCR register, but not upon a
read of the PHYSTS register.
1 = Inverted Polarity detected.
0 = Correct Polarity detected.
3
RESERVED
0, RW
RESERVED:
Must be zero.
2
RESERVED
1, RW
RESERVED:
Must be set to one.
1
HEARTBEAT_DIS
0, RW
Heartbeat Disable: This bit only has influence in half-duplex 10Mb
mode.
1 = Heartbeat function disabled.
0 = Heartbeat function enabled.
When the device is operating at 100Mb or configured for full
duplex operation, this bit will be ignored - the heartbeat func-
tion is disabled.
0
JABBER_DIS
0, RW
Jabber Disable:
Applicable only in 10BASE-T.
1 = Jabber function disabled.
0 = Jabber function enabled.
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