BCM5722 Programmer’s Guide
10/15/07
Broadcom Corporation
Page 247 Ethernet MAC Control Registers Document 5722-PG101-R
ETHERNET MAC EVENT ENABLE REGISTER (OFFSET 0X408)
LED CONTROL REGISTER (OFFSET 0X40C)
Table 192: Ethernet MAC Event Enable Register (Offset 0x408)
Bit Field Description Init Access
31:29 Reserved Always 0. 0 RO
28 Interesting Packet PME
Attention Enable
When this bit is set, an attention will be asserted on an interesting packet
match.
0R/W
27 TX Statistics Overrun Enable attention when transmit statistics block has overrun. 0 R/W
26 RX Statistics Overrun Enable attention when receive statistics block has overrun. 0 R/W
25 ODI Error Enable attention when an Output Data Interface block has an overrun or
underrun.
0R/W
24 AP Error Enable attention when the Auto-polling interface has an error. 0 R/W
23 MI Interrupt Enable attention when the Management Interface is signaling an
interrupt.
0R/W
22 MI Completion Enable attention when the Management Interface transaction has
completed.
0R/W
21:13 Reserved – 0 RO
12 Link State Changed Enable attention when the link has changed state. 0 R/W
11:0 Reserved – 0 RO
Table 193: LED Control Register (Offset 0x40C)
Bit Field Description Init Access
31 Override Blink Rate If set, the blink rate for the Traffic LED is determined by the Blink
Period field (bit 30 to bit 9). This bit is reset to 1. If not set, the
blink rate assumes a Blink Period of 0x040, corresponding to
approximately 15.9 Hz.
1R/W
30:19 Blink Period Specifies the period of each blink cycle (on + off) for Traffic LED
in milliseconds. Must be a nonzero value.
For the BCM5906 only, this12-bit field is reset to 0x019, giving a
default blink period of approximately 15.9 Hz.
000000
011001
R/W
For all other devices, this is reset to 0x040, giving a default blink
period of approximately 15.9 Hz.
000001
000000
R/W
18:16 Reserved – 0 RO
15 Wireless Combo Mode When this bit is set, the LED pins can be shared with a wireless
device which takes over when the link is lost.
0R/W
Reserved (BCM5906 only) – 0 RO
14 Shared Traffic/Link LED Mode When this bit is set, the Link LED is solid green when there is a
link and blinks when there is traffic. (The LED_MODE field must
be set to 00 before enabling this bit.)
1R/W
Reserved (BCM5906 only) – 0 RO
13 MAC Mode (See Note 1
below)
When this bit is set, the traffic LED blinks only when traffic is
addressed for the device. (The LED_MODE field must be set to
00 before enabling this bit.)
0R/W
Reserved (BCM5906 only) – 0 RO
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