emPC-CXR
(
Hardware Manual
)
•
System Control
7 - 35
Rev. V1.2
©
Janz Tec AG
Once the command has completed, the register is cleared to zero by the
PMON firmware.
DATA
Pointer 4 (16bit, rw)
15
0
DATA
DATA
Data to be supplied with the command to be executed is supplied in this
register. Write to DATA before writing to COMMAND.
VIN_ACTUAL
Pointer 6 (16bit, rw)
15
0
VIN_ACTUAL
VIN_ACTUAL
Voltage reading of the power supply voltage (+ contact on power
connector). Reading is in units of 1/100 V, so that register value of
0x800=2048 corresponds to 20.48 V.
VS_ACTUAL
Pointer 7 (16bit, rw)
15
0
VS_ACTUAL
VS_ACTUAL
Voltage reading of the sense voltage input (mid contact on power
connector). Reading is in units of 1/100 V, so that register value of
0x800=2048 corresponds to 20.48 V.
VIN0
Pointer 8 (16bit, rw)
15
0
VIN0
RESET:
Restored from EEPROM
VIN0
VIN1
Pointer 9 (16bit, rw)
15
0
VIN1
RESET:
Restored from EEPROM
VIN1
If the power supply voltage level is below VIN1, then the system is held in
reset. This state can be left if input voltage level is above VIN1+VHYST
for longer than TIN11.
VIN2
Pointer 10 (16bit, rw)
15
0
VIN2
RESET:
Restored from EEPROM
VIN2
If the power supply voltage level is below VIN2, the power supply is
immediately turned off. This state can be left if input voltage level is
above VIN2+VHYST for longer than TIN21.
This parameter has a factory set low limit. You cannot program values
below this limit. This limit might depend on the system configuration.