10h–1Fh Register Map Detailed DescriptionBCM5718 Programmer’s Guide
Broadcom®
January 29, 2016 • 5718-PG108-R Page 515
18h: Power/MII Control Register (Shadow Register Selector = “010”)
18h: IP Phone Register (Shadow Register Selector = “011”)
Bit Name RW Description Default
15:6 Reserved – – –
5 SUPER ISOLATE RW 1 = isolate mode with no linkpulses
transmitted
0 = normal operation
0
4:3 Reserved – – –
2:0 SHADOW REGISTER
SELECTOR
(REFERENCE ONLY)
RW Writes to the selected shadow register are
done on a single cycle (no setup required).
Reads are selected by first writing to register
18h, shadow 7, bits 14:12.
010
Bit Name RW Description Default
15 NON-STOP IP PHONE
DETECT MODE
RW 1 = IP status will always update
0 = IP status will halt after detecting an IP
PHONE
0
14:10 EXTENDED LINK PULSE
WIDTH COUNTER
RW 00000 = normal link pulse width,
otherwise additional link pulse width in 50 ns
increments
00000
9 ALTERNATE RANDOM
SEED GENERATION
RW 1 = generate random seed on next received link
pulse if flp_receive_idle is true
0 = normal operation
Writing this bit requires a RESTART of auto-
negotiation.
0
8 RESTART AUTO-
NEGOTI ATION
RW
SC
1 = restart auto-negotiation
0 = normal operation
0
7 IP PHONE WINDOW
MODE
RW 1 = enable IP Phone window detection mode
0 = normal operation
0
6 EXTENDED LINK PULSE
WIDTH ENABLE
RW 1 = enable extended link pulse width
transmission
0 = normal operation
0
5 ENABLE IP PHONE
DETECTION
RW 1 = IP Phone detection enabled
0 = IP Phone detection disabled
0
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