Broadcom BCM5722 - Table 501: Expansion Register 04 H: Multicolor LED Selector

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BCM5722 Programmer’s Guide

10/15/07

Broadcom Corporation

Page 437 Transceiver Registers Document 5722-PG101-R

EXPANSION REGISTER 04H: MULTICOLOR LED SELECTOR

The following expansion registers are enabled by writing to “Expansion Register Access Register (PHY_ADDR = 0x1,

Reg_Addr = 17h)” on page 434 bits [11:0] = F04h, and read/write access is through register 15h.

Flash Now

Setting this bit = 1 causes a single flash to occur on MULTICOLOR[1] when MULTICOLOR[1] Multicolor Selector is set to

0111, and a single flash to occur on LED2 when LED2 Multicolor Selector is set to 0111.

Table 501: Expansion Register 04h: Multicolor LED Selector

Bit Field Description Init Access

15:10 Reserved Write as 00h, ignore on read. 00h R/W

9 Flash Now 1 = Initiate a multicolor LED flash. This only works when the multicolor

selector is set to 0111.

0R/W

8 In Phase

• 1 = MULTICOLOR[1] and MULTICOLOR[2] are in phase.

• 0 = MULTICOLOR[1] and MULTICOLOR[2] are in opposite phase.

Note: This is only valid when Multicolor LED Selector bits are set to

0000, 0010, 0011, 0110, 0111, 1000, 1001, 1010.

0R/W

7:4 MULTICOLOR[2]

Multicolor Selector

Selects the multicolor mode for MULTICOLOR[2].

• 0000 = Encoded link/activity LED.

• 0001 = Encoded speed LED.

• 0010 = Activity flash LED.

• 0011 = Full-duplex LED.

• 0100 = Forced off.

• 0101 = Forced on.

• 0110 = Alternating LED (toggling between the modes at 50% duty

cycle with a 320 ms period).

• 0111 = Flashing LED (toggling between the modes with an 80 ms

period).

• 1000 = Link LED.

• 1001 = Activity LED.

• 1010 = Programmable blink LED.

0h R/W

3:0 MULTICOLOR[1]