AK9752 Datasheet, PDF (23/36 Pages) Asahi Kasei Microsystems – Ultra-small IR sensor IC with IC

[AK9752]
6). INTCAUSE: Interrupt factor Information (Read Only Register)
Address Name
D7
D6
D5
D4
D3
D2
D1
D0
05H INTCAUSE 1
1
1
IRH
IRL TMPH TMPL DR
Reset
1
1
1
0
0
0
0
0
When the correspondent bit in the Interrupt Factor Setting register (INTEN) is enabled, the interrupt to
the Host MCU is available. When an interruption happens, the interrupt factor is confirmed by reading
out this INTCAUSE register.
INTN pin returns to “Hi-Z” when INCAUSE register is read out.
IRH: Relation between IR sensor output and the upper threshold
“0”: IR sensor does not cross the upper threshold upward.
“1”: IR sensor crosses the upper threshold upward.
In case that IRHI is set to “1” in INTEN register, IRH changes to “1” when IR sensor output IR[15:0]
crosses the upper threshold THIRH[15:0] upward. Otherwise, IRH retains "0".
IRL: Relation between IR sensor output and the lower threshold
“0”: IR sensor does not cross the lower threshold downward.
“1”: IR sensor crosses the lower threshold downward.
In case that IRLI is set to “1” in INTEN register, IRL changes to “1” when IR sensor output IR[15:0]
crosses the lower threshold THIRL[15:0] downward. Otherwise, IRL retains "0".
TMPH: Relation between Temperature sensor output and the upper threshold
“0”: Temperature sensor does not cross the upper threshold upward.
“1”: Temperature sensor crosses the upper threshold upward.
In case that TMPHI is set to “1” in INTEN register, TMPH changes to “1” when Temperature sensor
output TMP[15:0] crosses the upper threshold THTMPH[15:0] upward. Otherwise, TMPH retains "0".
TMPL: Relation between Temperature sensor output and the lower threshold
“0”: Temperature sensor does not cross the lower threshold downward.
“1”: Temperature sensor crosses the lower threshold downward.
In case that TMPLI is set to “1” in INTEN register, TMPL changes to “1” when Temperature sensor output
TMP[15:0] crosses the lower threshold THTMPL[15:0] downward. Otherwise, TMPL retains "0".
DR: Data Ready
“0”: Normal State
“1”: Data Ready
DR changes to “1” when measurement data is ready to be read out with DRI is set to “1”.
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