Broadcom NetXtreme/NetLink BCM5718 Series

Miscellaneous Control RegistersBCM5718 Programmer’s Guide
Broadcom®
January 29, 2016 • 5718-PG108-R Page 483
EAV Ref Count Snapshot LSB[0] Reg (offset 0x6910)
This LSB & MSB pair captures the EAV Reference Count when externally triggered by the desired TimeSync/
APE_GPIO pin–a toggle serves a trigger. The only legal sequence of accessing this pair is Read-LSB followed
by Read-MSB.
Name Bits Access
Default
Value
Description
Reserved 31:30 RO 00 –
APE_GPIO[3] Mapping 29:27 RW 000 Same as below.
APE_GPIO[2] Mapping 26:24 RW 000 Same as below.
APE_GPIO[1] Mapping 23:21 RW 000 Same as below.
APE_GPIO[0] Mapping 20:18 RW 000 An APE_GPIO[n] pin is mapped to 1588 input/
output via this field:
000 => Do not use APE_GPIO[n] pin
001 => Reserved
010 => Reserved
011 => Reserved
100 => Use as Snap-Shot[0] Input Trigger
101 => Use as Snap-Shot[1] Input Trigger
110 => Use as Time Watchdog[0] Output
111 => Use as Time Watchdog[1] Output
TimeSync_GPIO Mapping 17:16 RW 00 The MAC/Port dedicated TimeSync_GPIO pin is
mapped via this field:
00 => Use as Snap-Shot[0] Input Trigger
01 => Use as Snap-Shot[1] Input Trigger
10 => Use as Time Watchdog[0] Output
11 => Use as Time Watchdog[1] Output
Reserved 15:12 RO 0x0 –
Reset on Network Link
Down -> Up
11 RW 0 –
Reset on Network Link Up
-> Down
10 RW 0 –
Reset on GRC Reset &
PCIe FLR
9 RW 0 Reset on GRC Reset pulse.
Reset on PCIe reset 8 RW 0 Reset on de-asserting edge of PCIe Reset.
Reserved 7:3 RO 0x0 –
Resume EAV Ref Count 2 W1C 0 –
Stop EAV Ref Count 1 RW 0 –
Reset EAV Ref Count 0 W1C 0 –