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