SSC050-01 Datasheet, PDF (53/79 Pages) Maxim Integrated Products – Two-Wire Serial Backplane Controller

Control Registers
Control Register Definition
SSC050-01
Data Sheet
Table 4-7: LED Combinations
FS2
FS1
FS0
DD
GPD
I/O State
LED State
0
0
0
0
0
output low
LED turned on
0
0
0
0
1
output high
LED turned off
0
0
0
1
X
pulled-up input
LED turned off - default state
0
0
1
0
X
output toggling
LED flashing at 0.25Hz
0
1
0
0
X
output toggling
LED flashing at 0.33Hz
0
1
1
0
X
output toggling
LED flashing at 0.50Hz
1
0
0
0
X
output toggling
LED flashing at 1.00Hz
1
0
1
0
X
output toggling
LED flashing at 2.00Hz
1
1
0
0
X
output toggling
LED flashing at 3.08Hz
1
1
1
0
X
output toggling
LED flashing at 4.00Hz
NOTE: The I/O is driven in an open drain mode when configured as a toggling output.
Table 4-8: Input Edge Combinations
FS2
FS1
FS0
DD
GPD
0
0
0
1
X
X
0
1
1
X
X
1
0
1
X
X
1
1
1
X
1
0
0
1
X
Interrupt Condition
No interrupt generated - default state
Interrupt generated on a rising edge
Interrupt generated on a falling edge
Interrupt generated on either edge
No interrupt generated
Revision 4.0
November 10, 2004
4-37