Rainbow-electronics MAX5961 Manual do Utilizador descarregar pdf (Página 31)

MAX5961

0 to 16V, Quad, Hot-Swap Controller

with 10-Bit Current and Voltage Monitor

______________________________________________________________________________________ 31

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

corresponding register is updated with the new value.

These peak detection registers are read/write accessi-

ble through the I

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 commanded by register peak_log_rst (see

Table 36).

Table 32. ADC Minimum Voltage Conversion Register Format (High-Order Bits)

Description: Minimum voltage conversion result, high-order bits [9:2]

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

Table 33. ADC Minimum Voltage Conversion Register Format (Low-Order Bits)

Description: Minimum voltage conversion result, low-order bits [1:0]

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

Table 34. ADC Maximum Voltage Conversion Register Format (High-Order Bits)

Description: Maximum voltage conversion result, high-order bits [9:2]

R/W R/W R/W R/W R/W R/W 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

1 2 ... 26 27 28 29 30 31 32 33 34 35 36 ... 41 42

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Rainbow-electronics MAX5961 Manual do Utilizador Página 31