Rainbow Electronics MAX5970 - Manual (Page 28)

0V to 16V, Dual Hot-Swap Controller with 10-Bit
Current and Voltage Monitor and 4 LED Drivers
MAX5970
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Table 32. ADC Minimum Voltage Conversion Register Format (High-Order Bits)
Table 33. ADC Minimum Voltage Conversion Register Format (Low-Order Bits)
Table 34. ADC Maximum Voltage Conversion Register Format (High-Order Bits)
Minimum and Maximum Value Detection
for Voltage Measurement Values
All voltage measurement values are compared with the
contents of minimum- and maximum-value registers,
and if the most recent measurement exceeds the stored
maximum or is less than the stored minimum, the corre-
sponding register is updated with the new value. These
peak detection registers are read accessible through the
I
2 C interface (see Tables 32–35). The minimum-value
registers are reset to 0x3FF, and the maximum-value
registers are reset to 0x000. These reset values are
loaded upon startup of a channel or at any time as com-
manded by register peak_log_rst (see Table 36).
Description: Minimum voltage conversion result, high-order bits [9:2]
Register Title: min_ch0_mon_msb min_ch1_mon_msb
Register Addresses: 0x0C 0x14
R/W R/W R/W R/W R/W R/W R/W R/W
RESET
VALUE
vmin_9 vmin_8 vmin_7 vmin_6 vmin_5 vmin_4 vmin_3 vmin_2 0xFF
bit 7 bit 6 bit 5 bit 4 bit 3 bit 2 bit 1 bit 0
Description: Minimum voltage conversion result, low-order bits [1:0]
Register Title: min_ch0_mon_lsb min_ch1_mon_lsb
Register Addresses: 0x0D 0x15
R/W R/W R/W R/W R/W R/W R/W R/W
RESET
VALUE
vmin_1 vmin_0 0x03
bit 7 bit 6 bit 5 bit 4 bit 3 bit 2 bit 1 bit 0
Description: Maximum voltage conversion result, high-order bits [9:2]
Register Title: max_ch0_mon_msb max_ch1_mon_msb
Register Addresses: 0x0E 0x12
R R R R R R R/W R/W
RESET
VALUE
vmax_9 vmax_8 vmax_7 vmax_6 vmax_5 vmax_4 vmax_3 vmax_2 0x00
bit 7 bit 6 bit 5 bit 4 bit 3 bit 2 bit 1 bit 0