MIC3000_07 Datasheet, PDF (58/68 Pages) Micrel Semiconductor – FOM Management IC

MIC3000
Bit
D[7]
D[6]
ADSTP
D[5]
ADIDL
D[4]
1SHOT
D[3]
ADSPIN
D[2], D[1], SPIN[2:0]
D[0]
Micrel
Function
Operation
Reserved
Always write as zero; reads undefined.
Stop ADC Halts the analog to digital converter 0 = normal operation; 1 = stopped; Read/write.
ADC idle flag
0 = busy; 1 = idle; Read/write.
Triggers one-shot A/D conversion cycle
0 = normal operation; 1 = one-shot; Read/write.
Selects ADC spin-on-channel mode; do not
enable ADC and FC spin-on-channel modes
simultaneously
0 = normal operation; 1 = spin-on-channel;
Read/write.
ADC and fault comparator (FC) channel select for ADC: 000 = temperature; 001 = voltage; 010 = VILD;
spin-on-channel mode; do not enable ADC and 011 = VMPD; 100 = VRX; FC: 001 = VILD;
FC spin-on-channel modes simultaneously
001 = VMPD; 010 = VRX; Read/write.
Look-Up Table Index (LUTINDX)
Look-up table index as determined by temperature compensation logic
D[7]
read/write
D[6]
read/write
D[5]
read/write
D[4]
read/write
D[3]
read/write
D[2]
read/write
D[1]
read/write
D[0]
read/write
Default Value
Serial Address
0000 0000_b = 00_h
A6h = 1010011b
Byte Address
18 = 12h
The look-up table index is derived from the current temperature measurement and LUTOFF as follows:
INDEX
=
⎛⎝⎜
T_AVG
2
(µ)
⎞⎠⎟
+ LUTOFF
where
T_AVG(n)
is
the
current
average
temperature.
This
register
allows
the
current
table
index to be read by the host. The table base address must be added to LUTINDX to form a complete table index in
physical memory. A valid OEM password is required for access to this register. Otherwise, reads are undefined.
BIAS DAC Setting (APCDAC)
Current VBIAS setting
D[7]
read only
D[6]
read only
D[5]
read only
D[4]
read only
D[3]
read only
D[2]
read only
D[1]
read only
D[0]
read only
Default Value
0000 0000_b = 00_h
Serial Address
A6_h = 1010011_b
Byte Address
20 = 14_h
This register reflects (reads back) the value set in the APC register (APCSET0, APCSET1, or APCSET2 whichever is
selected). A valid OEM password is required for access to this register.
Modulation DAC Setting (MODDAC)
Current VMOD setting
D[7]
read only
D[6]
read only
D[5]
read only
D[4]
read only
D[3]
read only
D[2]
read only
D[1]
read only
D[0]
read only
Default Value
0000 0000_b = 00_h
Serial Address
A6_h = 1010011_b
Byte Address
21 = 15_h
This register reflects (reads back) the value set in the MODSET register. A valid OEM password is required for access
to this register.
M9999-101204
58
October 2004