9.4
MAX1202 8-channel ADC
dimtel
dimtel
Table 12 – continued from previous page
Address
Bits
Definition
0x000113
15:0
Device 1, Internal diode
0x000114
15:0
Device 1,
V
dd
/
4, 3.3 V supply monitor
0x000115
15:0
Device 1, External diode (AIN0/AIN1), FPGA
die temperature
0x000116
15:0
Device 1, AIN2-AIN3 differential measurement
0x000117
15:0
Device 1, AIN5-AIN5 differential measurement
0x000118
15:0
Device 2, AIN2
0x000119
15:0
Device 2, AIN3
0x00011a
15:0
Device 2, AIN4, bulk supply monitor
0x00011b
15:0
Device 2, Internal diode
0x00011c
15:0
Device 2,
V
dd
/
4, 3.3 V supply monitor
0x00011d
15:0
Device 2, External diode (AIN0/AIN1)
0x00011e
15:0
Device 2, External diode (AIN2/AIN3)
0x00011f
15:0
Device 2, AIN5-AIN5 differential measurement
9.4
MAX1202 8-channel ADC
iGp-5120F includes 8-channel 12-bit serial-interface ADC. The SPI controller
for the ADC uses 8 consecutive addresses, as shown in Table 13. ADC is
continuously polled by the controller. Reading one of the channel registers
returns the result of the last conversion. ADC data is sign extended from 12
bits to 16. The valid data range is from
0xf800
to
0x7ff
. ADC input range
is from
−
2
.
048 to 2
.
047 V, i.e. 1 mV per LSB.
Table 13: FPGA registers: MAX1202 ADC
Address
Bits
Definition
0x000120
11:0
ADC channel 0
0x000121
11:0
ADC channel 1
0x000122
11:0
ADC channel 2
0x000123
11:0
ADC channel 3
0x000124
11:0
ADC channel 4
Continued on next page
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