Miscellaneous Control RegistersBCM5718 Programmer’s Guide
Broadcom®
January 29, 2016 • 5718-PG108-R Page 484
EAV Ref Count Snapshot MSB[0] Reg (offset: 0x6914)
TX Time Watchdog LSB[0] Reg (offset: 0x6918)
TX Time Watchdog MSB[0] Reg (offset: 0x691C)
TX Time Watchdog LSB[1] Reg (offset: 0x6920)
Name Bits Access
Default
Value
Description
EAV Reference Count
Snap-shot (lower half)
31:0 RO U LSB of the EAV Reference Count as snapshot by
Timesync/APE GPIO.
[2:0] shall always be 000
Name Bits Access
Default
Value
Description
EAV Reference Count
Snap-shot (Upper half)
31:0 RO U MSB of the EAV Reference Count as snapshot by
TimeSync/APE GPIO.
Name Bits Access
Default
Value
Description
Watchdog LSB Value 31:0 RW 0x0000 See “TX Time Watchdog MSB[0] Reg (offset:
0x691C)”.
Name Bits Access
Default
Value
Description
Enable Lock Timer 31 RW 0 Write a 1 to enable Time Watchdog[0].
Watchdog MSB Value 30:0 RW 0x00 This, concatenated with the Watchdog[0] LSB
value, constitutes a 63-bit value. Precision of the
value is 1ns–which equates to the precision of the
EAV Reference Count.
If bit[31] ==1, the desired Timesync/APE GPIO
shall toggle as soon as EAV Reference
Count[62:0] increments to match this 63-bit value.
Note: Setting this time value back in time will
produce no toggle.
Name Bits Access
Default
Value
Description
Watchdog LSB Value 31:0 RW 0x0000 See “TX Time Watchdog MSB[1] Reg (offset:
0x6924)” on page 485.
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