Hardware Reference Guide SST-DN4-PCU
Hardware Register Details 37
©2009 Molex Inc.Automation & Electrical Products, Integrated Products Division
Document Edition: 1.0, Document #: 715-0101, Template Edition: 1.1, Template #: QMS-06-045
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Note
Although the card does not have a physical power LED, the power status
can be determined via the PWR bits. Refer to Section 1.5.2,
LEDs, for
more details.
Table 17: LedReg Register Values
Bit Name/Value Description
PwrRed PwrGrn These bits indicate the channel’s power state
0
0
1
1
0
1
0
1
Invalid
LED is green
LED is red
Invalid
HealthRed HealthGrn These bits indicate the channel’s health LED state
0
0
1
1
0
1
0
1
LED is off
LED is green
LED is red
LED is amber
CommRed CommGrn These bits indicate the channel’s communications LED state
0
0
1
1
0
1
0
1
LED is off
LED is green
LED is red
LED is amber
3.4.8 Debug Register
This register is reserved.
3.4.9 Host Data Register (FamilyID)
The Host Data register can be used to pass 1 byte of data from Card to Host. This register is
written by the CPU and is read-only by the Host. Its use is determined by firmware/boot.