Time Sync RegistersBCM5718 Programmer’s Guide
Broadcom®
January 29, 2016 • 5718-PG108-R Page 165
TX TIME WATCHDOG LSB[0] REG [Offset 0x6918]
TX TIME WATCHDOG MSB[0] REG [Offset 0x691C]
PTP RX Time Stamping
Enable bit-map
25:23 RW 00 Write a 1 to enable – all permutations allowed.
[25] RX Time Stamp PTP V1 – L4 packets
[24] RX Time Stamp PTP V2 – L4 packets
[23] RX Time Stamp PTP V2 – L2 packets
See field [15:0]
Reserved 22:16 RO 0x00
Stamp-able PTP
Message Type bit-map
15:0 RW 0x0000 This field, in conjunction with field [25:23] qualifies a
particular PTP message type packet to be time
stamped by hardware. Write a 1 in a bit position to
enable time stamping of the corresponding message
type and write a 0 in a bit position to disable time
stamping of the corresponding message type:
[00] => Sync Event
[01] => Delay_Req
[02] => Pdelay_Req
[03] => Pdelay_Resp
[04 – 07] => N/A
[08] => Follow_Up
[09] => Delay_Resp
[10] => Pdelay_Resp_Follow_Up
[11] => Announce
[12] => Signaling
[13] => Management
[14 – 15] => N/A
Note: Not all message Types are available in PTP
V1.
Name Bits Access Default Value Description
Watchdog LSB Value 31:0 RW 0x0000 See TX Time Watchdog MSB[0] Register.
Name Bits Access Default Value Description
Enable Lock Timer 31 RW 0 Write a 1 to enable Time Watchdog[0].
Name Bits Access Default Value Description
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