ZSPM1025A
True Digital PWM Controller (Single-Phase, Single-Rail)
4.7.4.
VOUT_MODE
The VOUT_MODE command is used to retrieve information about the data format for all output voltage related
commands. Note that this is a read-only value.
VOUT_MODE (read only)
Bits
[4:0]
[7:5]
Name
PARAMETER
MODE
Description
2’s complement of the exponent
000: Linear data format
4.7.5.
VOUT_COMMAND
The VOUT_COMMAND is used to set the output voltage during run-time.
Note that the maximum output voltage is 3.6V.
VOUT_COMMAND (read/write)
Bits
Name
MANTISSA
Description
Unsigned mantissa of output voltage in V.
[15:0]
Exponent can be retrieved via VOUT_MODE command.
4.7.6.
STATUS_BYTE
The STATUS_BYTE command returns a summary of the most critical faults in one byte.
STATUS_BYTE (read only)
Bits
[0]
[1]
[2]
[3]
[4]
[5]
Name
NONE OF THE ABOVE
CML
Description
A fault not listed in bits [7:1] has occurred.
A communication fault as occurred.
TEMPERATURE
VIN_UV
A temperature fault or warning has occurred.
An input under-voltage fault has occurred.
An output over-current fault has occurred.
An output over-voltage fault has occurred.
IOUT_OC
VOUT_OV
This bit is asserted if the unit is not providing power to the output,
regardless of the reason, including simply not being enabled.
[6]
[7]
OFF
BUSY
Not supported.
© 2013 Zentrum Mikroelektronik Dresden AG — Rev. 1.00
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Data Sheet
October 24, 2013
28 of 46
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