MIC3003GFL Datasheet, PDF (63/74 Pages) Micrel Semiconductor – FOM Management IC with Internal Calibration

Micrel, Inc.
MIC3003GFL
OEM Calibration 1 (OEMCAL1)
D[7]
D[6]
D[5]
D[4]
D[3]
D[2]
D[1]
D[0]
reserved
read-only
ADSTP
read/write
ADIDL
read-only
ONESHOT
read/write
ADSPIN
read/write
SPIN[2]
read/write
SPIN[1]
read/write
SPIN[0]
read/write
Default value
0000 0000b = 00h
Serial address
A6h
Byte address
17 = 11h
A valid OEM password is required for access to this register. This register is volatile and will not keep its value through power
cycles.
Bit
D[7]
D[6]
ADSTP
Function
Reserved
Stop ADC: Halts the analog to digital
converter
D[5]
ADIDL ADC idle flag
D[4] ONESHOT Triggers one-shot A/D conversion cycle
D[3]
D[2:0]
ADSPIN
SPIN[2:0]
Selects ADC spin-on-channel mode; do
not enable ADC and FC spin-on-channel
modes simultaneously
ADC and Fault Comparator (FC) channel
select for spin-on-channel mode; do not
enable ADC and FC spin-on-channel
modes simultaneously
Operation
Always write as zero; reads undefined.
0 = ADC in normal operation
1 = ADC stopped
When ADSTP is set, the five-channel ADC halts and no
new ADC results are computed. Existing result registers
are not changed.
In addition, no new temperature compensation is applied
to the APC loop and fault parameters, and no
comparisons of the ADC results against the alarm and
warning limits is performed.
0 = ADC is busy
1 = ADC is idle
ADIDL may be used in conjunction with ONESHOT to
determine when the single ADC conversion is complete.
After ONESHOT is set, the ADC runs until completion
and then halts. Software may poll ADIDL to detect this
completion before interrofating the result.
0 = Normal ADC operation
1 = ADC one-shot mode
Setting ONESHOT high starts the ADC and causes it to
stop after the next conversion is complete. After the
conversion, the ADC remains stopped until ONESHOT is
set low.
Multiple single ADC conversions may be executed by
repeatedly writing one to ONESHOT.
0 = Normal ADC operation
1 = ADC spin-on-channel
ADC:
000 = temperature
001 = voltage
010 = VILD
011 = VMPD
100 = VRX
July 2010
63
M9999-072910-A
[e-mail] or [phone]