
SMH4814
CONFIGURATION REGISTERS (CONTINUED)
Preliminary Information
Summit Microelectronics, Inc
2080 2.0 07/21/05
39
Register R10 – Power Down or Forced Shutdown, Fault or no Fault
.
Register R10
D7
D6
D5
D4
D3
0
0
-
-
-
0
1
-
-
-
1
0
-
-
-
1
1
-
-
-
-
-
0
0
-
-
-
0
1
-
-
-
1
0
-
-
-
1
1
-
D2
-
-
-
-
-
-
-
-
D1
-
-
-
-
-
-
-
-
D0
-
-
-
-
-
-
-
-
Action
Shorted FET Detection disabled
Shorted FET sets fault
Shorted FET causes power down
Shorted FET causes forced shutdown
Blown Fuse Detection disabled
Blown sets fault
Blown causes power down
Blown causes forced shutdown
Enable Fuse Check High (works in conjunction with
R10 D[5:4])
-
-
-
-
0
-
-
-
-
-
-
-
1
-
-
-
Disable Fuse Check High (works in conjunction with
R10 D[5:4])
Disable Periodic Fuse Checking
Enable Periodic Fuse Checking
Short Circuit Level = 256V (defines the amount
Drain Sense has to move during Short Detect)
Short Circuit Level = 512V (defines the amount
Drain Sense has to move during Short Detect)
Short Circuit Level = 1.024V (defines the amount
Drain Sense has to move during Short Detect)
Short Circuit Level = 2.048V (defines the amount
Drain Sense has to move during Short Detect)
-
-
-
-
-
-
-
-
-
-
0
1
-
-
-
-
-
-
-
-
-
-
0
0
-
-
-
-
-
-
0
1
-
-
-
-
-
-
1
0
-
-
-
-
-
-
1
1
Register R11 – PUP polarity, Power-up command.
.
Register R11
D7
D6
D5
D4
0
-
-
-
1
-
-
-
-
0
0
0
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
D3
-
-
-
0
1
-
-
-
-
-
-
D2
-
-
-
-
-
0
1
-
-
-
-
D1
-
-
-
-
-
-
-
0
1
-
-
D0
-
-
-
-
-
-
-
-
-
0
1
Action
Command Not Required for Power-Up
Command is Required for Power-Up
Power Up/Down Configuration
PUP
D
polarity = active low
PUP
D
polarity = active high
PUP
C
polarity = active low
PUP
C
polarity = active high
PUP
B
polarity = active low
PUP
B
polarity = active high
PUP
A
polarity = active low
PUP
A
polarity = active high