ISL78229 Datasheet, PDF (46/71 Pages) Intersil Corporation – 2-Phase Boost Controller with Drivers

ISL78229
PMBus™ Command Detail
OPERATION (01h)
Definition: Sets to Enable and Disable the PWM regulating operation. Only Bits [7:6] are used for ISL78229. If Bits [7:6] are written to be
00b, the device turns off PWM regulation immediately. This command can also be monitored to read the operating state of the device
on Bits [7:6]. The value read reflects the current state of the device.
Data Length in Bytes: 1
Data Format: Bit Field
Type: R/W
Protectable: Yes
Default Value: 80h (immediate off)
Units: N/A
COMMAND
Format
Bit Position
Access
Function
Default Value
BITS 7:6
00
10
7
R/W
6
R/W
5
R/W
1
0
0
BITS 5:0
(NOT USED)
XXXXXX
XXXXXX
OPERATION (01h)
Bit Field
4
3
R/W
R/W
See Following Table
0
0
2
R/W
0
1
R/W
0
UNIT ON OR OFF
Immediate off
On, normal operation
0
R/W
0
CLEAR_FAULTS (03h)
Definition: Clears all fault bits that have been set in the Fault_Status register and releases the SALERT pin (if asserted) simultaneously.
If a fault condition still exists when the bit is cleared, the fault bit will be set again immediately and the host notified by the SALERT pin.
This command does not restart the ISL78229 that has latched off or been in hiccup mode for a fault condition, it only clears the fault
bits in the Fault_Status register and release the SALERT pin.
This command is write only. There is no data byte for this command.
Data Length in Bytes: 0 Byte
Data Format: N/A
Type: Send Byte
Protectable: Yes
Default Value: N/A
Units: N/A
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FN8656.3
February 12, 2016