dp83630sqx National Semiconductor Corporation, dp83630sqx Datasheet - Page 101
dp83630sqx
Manufacturer Part Number
dp83630sqx
Description
Precision Phyter - Ieee 1588 Precision Time Protocol Transceiver
Manufacturer
National Semiconductor Corporation
Datasheet
1.DP83630SQX.pdf
(126 pages)
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15:12
15:13
15:8
11:0
11:0
Bit
7:0
Bit
Bit
12
14.7.10 PTP Offset Register (PTP_OFF), Page 6
This register provides the byte offset to the PTP message in a Layer2 Ethernet frame.
14.7.11 PTP GPIO Monitor Register (PTP_GPIOMON), Page 6
This register provides read-only access to the current values on GPIO inputs.
14.7.12 PTP Receive Hash Register (PTP_RXHASH), Page 6
This register provides configuration for the source identity hash filter of the PTP receive packet parser. If enabled, the receive parse
logic will deliver a receive timestamp only if the hash function on the ten octet sourcePortIdentity field correctly matches the
programmed value. The source identity hash filter does not affect timestamp insertion.
PTP_RX_HASH
PTP_GPIO_IN
RX_HASH_EN
PTP_OFFSET
RESERVED
RESERVED
RESERVED
Bit Name
Bit Name
Bit Name
TABLE 85. PTP GPIO Monitor Register (PTP_GPIOMON), address 0x1E
TABLE 86. PTP Receive Hash Register (PTP_RXHASH), address 0x1F
0000 0000 0000,
0000 0000 0000,
0000 0000, RO
0000 0000, RO
TABLE 84. PTP Offset Register (PTP_OFF), address 0x1D
0000, RO
000, RO
Default
Default
Default
0, RW
RW
RO
Reserved: Writes ignored, Read as 0
PTP Offset:
This field contains the offset in bytes to the PTP Message from the preceding
header. For Layer2, this is the offset from the Ethernet Type Field. For UDP/IP, it
is the offset from the end of the UDP Header.
Reserved: Writes ignored, Read as 0
PTP GPIO Inputs:
This field reflects the current values seen on the GPIO inputs. GPIOs 12 through
1 are mapped to bits 11:0 in order.
Reserved: Writes ignored, Read as 0
Receive Hash Enable:
Enables filtering of PTP messages based on the hash function on the ten octet
sourcePortIdentity field.
Receive Hash:
This field contains the expected source identity hash value for incoming PTP
event messages.
101
Description
Description
Description
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