
NOIL1SN3000A
Fixed (b0011110 / d30)
This register is read only and always returns 11000100.
Table 32. FIXED REGISTER
Idle_B (b0100100 / d36)
This register contains the idle B keyword.
Table 38. IDLE_B REGISTER
Value
On startup
Effect
11000100
Value
On startup
Effect
11101011
Chip_rev_nb (b0011111 / d31)
This register contains the revision number of the chip. It
is a read only register and a write operation does not have any
effect.
The revision number is not guaranteed to represent all
mask changes. Some mask changes do not allow to change
the revision number.
Table 33. CHIP_REV_NB REGISTER
Value Effect
Reference Voltage Adjust Register (b1000000 / d64)
The reference voltage adjust register allows trimming of
the bandgap and vref levels. Bits <7> and <3> are ignored.
? bg_trim, bits <2:0>: Setting these bits adjusts the
bandgap voltage by selecting the value for the on-chip
resistor R2. This resistor trims the PTAT “K” factor.
See On ? Chip BandGap Reference and Current Biasing
on page 17
? vref_trim, bits <6:4>: Setting these bits adjusts the
reference voltage range (vrefp-vrefm) for the ADCs.
00000001
00000010
Rev. A
Rev. B
Table 39. REFERENCE VOLTAGE ADJUST
REGISTER
…
On startup
Current revision number
Value
bg_trim, bits <2:0>
Effect
SOF (b0100000 / d32)
This register contains the SOF keyword.
Table 34. SOF REGISTER
000
001
010
R2= 82.5K
R2= 83.5K
R2= 84.5K
Vbg 1.25 Vnominal
Value
On startup
Effect
00100000
011
1xx
R2= 85.5K
R2= 86.5K
SOL (b0100001 / d33)
This register contains the SOL keyword.
Table 35. SOL REGISTER
On startup
vref_trim, bits <6:4>
000
001
010
0.50x
0.67x
Value
On startup
Effect
00100010
010
011
0.71x
0.77x
EOL (b0100010 / d34)
This register contains the EOL keyword.
Table 36. EOL REGISTER
100
101
110
111
0.83x
0.91x
0.95x
1.00x nominal
Value
On startup
Effect
00100011
On startup
111
Idle_A (b0100011 / d35)
This register contains the idle A keyword.
Table 37. IDLE_A REGISTER
Value
On startup
Effect
11101011
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