Rainbow Electronics MAX5970 - Manual (Page 12)

0V to 16V, Dual Hot-Swap Controller with 10-Bit
Current and Voltage Monitor and 4 LED Drivers
MAX5970
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Detailed Description
The MAX5970 includes a set of registers that are
accessed through the I
2 C interface. Some of the registers
are read only and some of the registers are read and write
that are updated to configure the MAX5970 for a specific
operation. See Tables 1a and 1b for the registers map.
Table 1a. Register Address Map (Channel Specific)
REGISTER DESCRIPTION CHANNEL 1 CHANNEL 2
RESET
VALUE READ/
WRITE
adc_chx_cs_msb
High 8 bits ([9:2]) of latest current-signal
ADC result
0x00 0x04 — R
adc_chx_cs_lsb
Low 2 bits ([1:0]) of latest current-signal ADC
result
0x01 0x05 — R
adc_chx_mon_msb
High 8 bits ([9:2]) of latest voltage-signal
ADC result
0x02 0x06 — R
adc_chx_mon_ lsb
Low 2 bits ([1:0]) of latest voltage-signal
ADC result
0x03 0x07 — R
min_chx_cs_msb
High 8 bits ([9:2]) of current-signal minimum
value
0x08 0x10 0xFF R
min_chx_cs_ lsb
Low 2 bits ([1:0]) of current-signal minimum
value
0x09 0x11 0x03 R
max_chx_cs_msb
High 8 bits ([9:2]) of current-signal maximum
value
0x0A 0x12 0x00 R
max_chx_cs_ lsb
Low 2 bits ([1:0]) of current-signal maximum
value
0x0B 0x13 0x00 R
min_chx_mon_msb
High 8 bits ([9:2]) of voltage-signal minimum
value
0x0C 0x14 0xFF R
min_chx_mon_ lsb
Low 2 bits ([1:0]) of voltage-signal minimum
value
0x0D 0x15 0x03 R
max_chx_mon_msb
High 8 bits ([9:2]) of voltage-signal maximum
value
0x0E 0x16 0x00 R
max_chx_mon_ lsb
Low 2 bits ([1:0]) of voltage-signal maximum
value
0x0F 0x17 0x00 R
uv1thr _chx_msb
High 8 bits ([9:2]) of undervoltage warning
(UV1) threshold
0x1A 0x24 0x00 R/W
uv1thr_chx_ lsb
Low 2 bits ([1:0]) of undervoltage warning
(UV1) threshold
0x1B 0x25 0x00 R/W
uv2thr_chx_msb
High 8 bits ([9:2]) of undervoltage critical
(UV2) threshold
0x1C 0x26 0x00 R/W
uv2thr_chx_ lsb
Low 2 bits ([1:0]) of undervoltage critical
(UV2) threshold
0x1D 0x27 0x00 R/W
ov1thr_chx_msb
High 8 bits ([9:2]) of overvoltage warning
(OV1) threshold
0x1E 0x28 0xFF R/W
ov1thr_chx_ lsb
Low 2 bits ([1:0]) of overvoltage warning
(OV1) threshold
0x1F 0x29 0x03 R/W