SST-PFB3-ISA
Hardware Reference Guide
Hardware Register Details
35
©2004 Woodhead Software & Electronics, Division of Woodhead Canada Limited
Document Edition: 1.0, Document #: 715-0078, Template Edition: 1.1, Template #: QMS-06-045
Use, duplication or disclosure of this document or any of the information contained herein is subject to the restrictions on page ii of this document.
3.1.7 LedReg Register
This register reflects the state of the LEDs, allowing host software to monitor the LEDs and
display them on-screen.
Table 21: LedReg Register Settings
COMM
Sys
Bit
7
6
5
4
1
0
Name
Reserved CommRed
CommGrn
SysRed
SysGrn
Read/Write
R R R R R R
Reset
0 0 0 0 0 0
Table 22: LedReg Register Values
Bit Name/Value
Description
CommRed CommGrn
These bits indicate the state of the communications LED.
0
0
1
1
0
1
0
1
Invalid
LED is green
LED is red
Invalid
SysRed
SysGrn
These bits indicate the state of the system LED
0
0
1
1
0
1
0
1
LED is off
LED is green
LED is red
LED is amber