Broadcom BCM5722 - Table 503: Expansion Register 06 H: Multicolor LED Programmable Blink Controls

BCM5722 Programmer’s Guide
10/15/07
Broadcom Corporation
Page 439 Transceiver Registers Document 5722-PG101-R
Alternation Rate
Setting bits [11:6] changes the width and gap of the alternating LED modes. These bits are only valid when the
MULTICOLOR[1] Multicolor Selector and or the MULTICOLOR[2] Multicolor Selector bits = 0110. LED's duty cycle is exactly
50%.
Flash Rate
Setting bits [5:0] determines the width and minimum gap of the flashing pulse. These bits are only valid when the
MULTICOLOR[1] Multicolor Selector and/or the MULTICOLOR[2] Multicolor Selector bits = 0000, 0010, or 0111. The duty
cycle of the flash rate is not exactly 50%.
EXPANSION REGISTER 06H: MULTICOLOR LED PROGRAMMABLE BLINK CONTROLS
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] = F06h, and read/write access is through register 15h.
Blink Update Now
Setting bit 5 updates the blink rate immediately. Clearing this bit causes the blink rate to be updated after the 1s interval timer
expires. This bit is only valid when the MULTICOLOR[1] Multicolor Selector and or the MULTICOLOR[2] Multicolor Selector
bits = 0000, 0010, or 0111.
Blink Rate
Setting bits [4:0] determines the blink rate of the Programmable Blink LED. These bits are only valid when the
MULTICOLOR[1] Multicolor Selector and or the MULTICOLOR[2] Multicolor Selector bits = 0000, 0010, or 0111.
Table 503: Expansion Register 06h: Multicolor LED Programmable Blink Controls
Bit Field Description Init Access
15:6 Reserved Write as 000h, ignore on read. 000h R/W
5 Blink Update Now
• 1 = Change to the new Blink Rate now.
• 0 = Wait 1s before changing Blink Rate.
Controls when a change in the Blink Rate is actually
displayed on the Programmable Blink LED.
0R/W
4:0 Blink Rate Programs the number of blinks per second that the
Programmable Blink LED blinks.
• 00000 = No blink.
• 00001 = One blink per second.
• 00010 = Two blinks per second.
• 00011 = Three blinks per second.
• ...
• 11111 = 31 blinks per second.
00000 R/W