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TMP007AIYZFT データシートの表示(PDF) - Texas Instruments

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TMP007AIYZFT Infrared Thermopile Sensor with Integrated Math Engine TI
Texas Instruments TI
TMP007AIYZFT Datasheet PDF : 55 Pages
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TMP007
SBOS685C – APRIL 2014 – REVISED JULY 2015
www.ti.com
LLF:
Local Temperature (TDIE) Low Limit Flag. Bit 10
This bit is set to 1 if the result in the TDIE local temperature result register goes below the value in the local temperature low limit
register. In INT mode, the bit is cleared when the status register is read. In COMP mode, the bit is disabled and always reads 0.
nDVF:
Data Invalid Flag. Bit 9
If the calculated object temperature is invalid due to an internal error in the math engine or if sensor voltage is out of range, then
Data invalid flag is set. In INT mode, this flag can only be cleared by reading the status register. In COMP mode it is cleared at
the end of the conversion if the calculated object temperature and sensor voltage are valid.
MCRPT:
Memory Corrupt Flag. Bit 8.
This flag indicates an internal check on the memory failed. This check is automatically performed only on a general load of the
registers from memory that is done right after a power on reset, general call reset, or software reset (RST bit in the configuration
register), or by forcing loads through the memory access register. When this bit is set, it can only be cleared by a clean pass of
the internal check on memory.
Mirror of this bit is in memory access register, bit 12.
DOF:
IR Data Overflow DATA_OVF Flag: Bit 7.
This flag indicates if sensor voltage measured is over range. Combined with the data invalid bit, it tells why data is invalid.
Bits 6 to 0: Not used. These bits always read 0.
7.5.6 Status Mask and Enable Register (address = 05h) [reset = 0000h]
Figure 35. Status Mask and Enable Register
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
0
ALRTEN
CRTEN
OHEN OLEN LHEN
LLEN
DVEN
MEM_C_
EN
R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0
LEGEND: R/W = Read/Write; R = Read only; -n = value after reset
ALRTEN:
Alert Flag Enable Bit. Bit 15
0: ALRTF flag in status register cannot activate ALERT pin.
1: ALRTF flag any enabled flag in Status register will activate ALERT pin.
Can also be set by its mirror in Configuration register, bit 8.
CRTEN:
Temperature Conversion Ready Enable Bit. Bit 14
0: CRTF flag in status register cannot activate ALRTF
1: CRTF flag in Status register will activate ALRTF.
OHEN:
Object Temperature High Limit Enable Bit. Bit 13
0: OHF flag in Status register cannot activate ALRTF.
1: OHF flag in Status register will activate ALRTF.
OLEN:
Object Temperature Low Limit Enable Bit. Bit 12
INT Mode:
0: OLF flag in Status register cannot activate ALRTF.
1: OLF flag in Status register will activate ALRTF.
COMP Mode: This bit is disabled in COMP mode and will always read 0.
LHEN:
TDIE Temperature High Limit Enable Bit. Bit 11
0: AHF flag in Status register cannot activate ALRTF.
1: AHF flag in Status register will activate ALRTF in INT mode
LLEN:
TDIE Temperature Low Limit Enable Bit. Bit 10
INT Mode (Alert Mode):
0: ALF flag in Status register cannot activate ALRTF.
1: ALF flag in Status register will activate ALRTF in INT mode
COMP Mode: This bit is disabled in COMP mode and always read 0.
DVEN:
Data invalid Flag Enable Bit. Bit 9
0: Data invalid Flag in Status register cannot activate ALRTF.
1: Data invalid Flag in Status register will activate ALRTF.
MEM_C_EN: Memory Corrupt Enable Bit. Bit 8
0: Memory Corrupt flag in Status register cannot activate ALRTF.
1: Memory Corrupt flag in Status register will activate ALRTF.
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