dp83848qsqx/nopb National Semiconductor Corporation, dp83848qsqx/nopb Datasheet - Page 47

• Manufacturer Part Number: dp83848qsqx/nopb
• Description: Phyter Extended Temperature Single Port 10/100 Mb/s Ethernet Physical Layer Transceiver
• Manufacturer: National Semiconductor Corporation

15:12
11:9
Bit
Bit
4:0
12
11
10
13.2.8 10 Base-T Status/Control Register (10BTSCR)
This register is used for control and status for 10BASE-T device operation.
9
8
7
6
5
RESERVED
PHYADDR[4:0]
SQUELCH
BIST_STATUS
BP_STRETCH
Bit Name
BIST_START
RESERVED
PAUSE_TX
LED_CFG
Bit Name
BIST_FE
PSR_15
TABLE 28. 10Base-T Status/Control Register (10BTSCR), address 1Ah
100, RW
Default
0, RW
Strap, RW
Strap, RW
0, RW/SC
0, LL/RO
Default
0, RW
0, RW
0, RW
0, RO
0, RO
RESERVED: Must be zero.
Squelch Configuration:
Used to set the Squelch ON threshold for the receiver.
Default Squelch ON is 330mV peak.
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 Highest
Common Denominator is a full duplex technology.
BIST Force Error:
1 = Force BIST Error.
0 = Normal operation.
This bit forces a single error, and is self clearing.
BIST Sequence select:
1 = PSR15 selected.
0 = PSR9 selected.
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.
BIST Start:
1 = BIST start.
0 = BIST stop.
Bypass LED Stretching:
This will bypass the LED stretching and the LED will reflect the internal
value.
1 = Bypass LED stretching.
0 = Normal operation.
RESERVED: Writes ignored, read as 0.
LED Configuration
In Mode 1, LED is configured as follows:
LED_LINK = ON for Good Link, OFF for No Link
In Mode 2, LED is configured as follows:
LED_LINK = ON for good Link, BLINK for Activity
PHY Address: PHY address for port.
47
LED_CFG
1
0
Description
Description
Mode Description
Mode 1
Mode 2
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