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Chapter 9: Precise Timing Protocol Packet Buffers
The
will use this interface to decode, and then act on, the received PTP packet information.
X-Ref Target - Figure 9-2
86
"Software Drivers"
provided with the core, using the PLB and dedicated interrupt,
Rx PTP Packet Buffers
Buffer Number
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
0
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Buffer Base Address
0x0F00
0x0E00
0x0D00
0x0C00
0x0B00
0x0A00
0x0900
0x0800
0x0700
0x0600
0x0500
0x0400
0x0300
0x0200
0x0100
0x0000
Figure 9-2: Rx PTP Packet Buffer
Single Rx PTP Packet Buffer
Address (+ Buffer Base Address)
timestamp[31:24]
0xFF
timestamp[23:16]
0xFE
timestamp[15:8]
0xFD
timestamp[7:0]
0xFC
unused
frame size
PTP Frame Data
0x00
byte-wide data
Ethernet AVB Endpoint User Guide
UG492 September 21, 2010
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