dp83630sqx National Semiconductor Corporation, dp83630sqx Datasheet - Page 59

• Manufacturer Part Number: dp83630sqx
• Description: Precision Phyter - Ieee 1588 Precision Time Protocol Transceiver
• Manufacturer: National Semiconductor Corporation

15:8
15:8
15:3
7:0
7:0
Bit
Bit
Bit
2:0
14.1.13 Page Select Register (PAGESEL)
This register is used to enable access to the Link Diagnostics Registers.
14.2 EXTENDED REGISTERS - PAGE 0
14.2.1 False Carrier Sense Counter Register (FCSCR)
This counter provides information required to implement the “False Carriers” attribute within the MAU managed object class of
Clause 30 of the IEEE 802.3u specification.
14.2.2 Receiver Error Counter Register (RECR)
This counter provides information required to implement the “Symbol Error During Carrier” attribute within the PHY managed object
class of Clause 30 of the IEEE 802.3u specification.
RXERCNT[7:0]
FCSCNT[7:0]
RESERVED
RESERVED
RESERVED
PAGE_SEL
Bit Name
Bit Name
Bit Name
TABLE 27. False Carrier Sense Counter Register (FCSCR), address 0x14
0000 0000, RO/COR RX_ER Counter:
0000 0000, RO/COR False Carrier Event Counter:
TABLE 28. Receiver Error Counter Register (RECR), address 0x15
0000 0000 0000 0,
0000 0000, RO
0000 0000, RO
TABLE 26. Page Select Register (PAGESEL), address 0x13
000, RW
Default
Default
Default
RO
RESERVED: Writes ignored, read as 0
Page_Sel Bits:
Selects between paged registers for address 14h to 1Fh.
0 = Extended Registers Page 0
1 = RESERVED
2 = Link Diagnostics Registers Page 2
3 = RESERVED
4 = PTP 1588 Base Registers Page 4
5 = PTP 1588 Config Registers Page 5
6 = PTP 1588 Config Registers Page 6
RESERVED: Writes ignored, read as 0
This 8-bit counter increments on every false carrier event. This counter sticks
when it reaches its maximum count (FFh).
RESERVED: Writes ignored, read as 0.
When a valid carrier is present and there is at least one occurrence of an invalid
data symbol, this 8-bit counter increments for each receive error detected. This
event can increment only once per valid carrier event. If a collision is present, the
attribute will not increment. The counter sticks when it reaches its maximum count.
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Description
Description
Description
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