AK9752 Datasheet, PDF (27/36 Pages) Asahi Kasei Microsystems – Ultra-small IR sensor IC with IC

[AK9752]
12). INTEN: Interrupt Factor Setting (Read/Write Register)
Address Name
D7
D6
D5
D4
13H
INTEN
1
1
1
IRHI
Reset
1
1
1
0
D3
D2
D1
D0
IRLI TMPHI TMPLI DRI
0
0
0
0
INTN output can be used as an interrupt to Host MCU by the following setting. INTN changes to “L”,
when at least one of the enabled interrupt factor conditions is satisfied.
Host MCU can identify the interrupt factor by reading out the Interrupt factor information register
(INTCAUSE).
When DRI and Threshold Level Interrupt (IRHI, IRLI, TMPHI and TMPLI) are set to “Enable” in parallel,
the priority is given to threshold level interrupt.
IRHI: IR Upper Threshold Interrupt Setting
“0”: Interrupt is invalid
“1”: Interrupt is valid
IRHI controls whether interrupt is valid or not when IR sensor output crosses the upper threshold
upward. Set “1” in IRHI to enable interrupt.
IRLI: IR Lower Threshold Interrupt Setting
“0”: Interrupt is invalid
“1”: Interrupt is valid
IRLI controls whether interrupt is valid or not when IR sensor output crosses the lower threshold
downward. Set “1” in IRLI to enable interrupt.
TMPHI: Temperature Sensor Upper Threshold Interrupt Setting
“0”: Interrupt is invalid
“1”: Interrupt is valid
TMPHI controls whether interrupt is valid or not when Temperature Sensor output crosses the upper
threshold upward. Set “1” in TMPHI to enable interrupt.
TMPLI: Temperature Sensor Lower Threshold Interrupt Setting
“0”: Interrupt is invalid
“1”: Interrupt is valid
TMPLI controls whether interrupt is valid or not when Temperature Sensor output crosses the lower
threshold downward. Set “1” in TMPLI to enable interrupt.
DRI: Data Ready Interrupt Setting
“0”: Interrupt is invalid
“1”: Interrupt is valid
DRI controls whether interrupt is valid or not at the completion of Data Ready. Set “1” in DRI to enable
interrupt.
016016473-E-00
- 27 -
2017/1