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번역좀 부탁드립니다.switch programmable inputs:
programmable switch detection inputs. these 8 inputs can selectively detect switch closures to ground or battery. the 33972 device has 8 switch inputs capable of being programmed to read switch-to-ground or switch-to-battery contacts. the input is compared with a 4.0 v reference. when programmed to be switch-to-battery, voltages greater than 4.0 v are considered closed. voltages less than 4.0 v are considered open. the opposite holds true when inputs are programmed as switch-to-ground.

switch-to-ground inputs:
switch detection interface inputs. these 14 inputs can detect switch closures to ground only. the input is compared with a 4.0 v reference. voltages greater than 4.0 v are considered open. voltages less than 4.0 v are considered closed. note: each of these inputs may be used to supply current to sensors external to a module.

wake-up / interrupt register
the wake-up / interrupt register defines the inputs that are allowed to wake the 33972 from sleep mode or set the int pin low in normal mode. programming the wake-up / interrupt bit to logic [0] will disable the specific input from generating an interrupt and will disable the specific input from waking the ic in sleep mode (table 7). programming the wake-up /interrupt bit to logic [1] will enable the specific input to generate an interrupt with switch change of state and will enable the specific input as wake-up. the mcu may change or update the wake-up / interrupt register via software at any time in normal mode.

wetting current register
the 33972 has two levels of switch contact current, 16 and 2.0 ma (see figure 11). the metallic command is used to set the switch contact current level (table 8). programming the metallic bit to logic [0] will set the switch wetting current to 2.0 ma. programming the metallic bit to logic [1] will set the switch contact wetting current to 16 ma. the mcu may change or update the wetting current register via software at any time in normal mode.
wetting current is designed to provide higher levels of current during switch closure. the higher level of current is designed to keep switch contacts from building up oxides that form on the switch contact surface.

wetting current timer register
each switch input has a designated 20 ms timer. the timer starts when the specific switch input crosses the comparator threshold (4.0 v). when the 20 ms timer expires, the contact current is reduced from 16 to 2.0 ma. the wetting current timer may be disabled for a specific input. when the timer is disabled, 16 ma of current will continue to flow through the closed switch contact. with multiple wetting current timers disabled, power dissipation for the ic must be considered.
the mcu may change or update the wetting current timer register via software at any time in normal mode. this allows the mcu to control the amount of time wetting current is applied to the switch contact. programming the wetting current timer bit to logic [0] will disable the wetting current timer. programming the wetting current timer bit to logic [1] will enable the wetting current timer.여기까지입니다.

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