TCN75AVUA. 查看數據表（PDF） - Microchip Technology
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TCN75AVUA. Datasheet PDF : 32 Pages
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TCN75A
5.3.3 TEMPERATURE HYSTERESIS
REGISTER (THYST)
The TCN75A has a 16-bit read/write Temperature
Hysteresis register that contains a 9-bit data in two’s
compliment format. This register is used to set a
hysteresis for the TSET limit. Therefore, the data
represents a minimum temperature limit. If the ambient
temperature drifts below the specified limit, the
TCN75A asserts an alert output (refer to
Section 5.3.4.3 “ALERT Output Configuration”).
This register uses the nine Most Significant bits (MSbs)
and all other bits are don’t cares.
The power-up default value of THYST register is 75°C,
or <0100 1011 0>b in binary.
REGISTER 5-4: TEMPERATURE HYSTERESIS REGISTER (THYST) - ADDRESS <0000 0010>b
Upper Half:
R/W-0
Sign
bit 15
R/W-1
26 °C
R/W-0
25 °C
R/W-0
24 °C
R/W-1
23 °C
R/W-0
22 °C
R/W-1
21 °C
R/W-1
20 °C
bit 8
Lower Half:
R/W-0
R-0
R-0
R-0
R-0
R-0
R-0
R-0
2-1 °C
0
0
0
0
0
0
0
bit 7
bit 0
Legend:
R = Readable bit
-n = Value at POR
W = Writable bit
‘1’ = Bit is set
U = Unimplemented bit, read as ‘0’
‘0’ = Bit is cleared
x = Bit is unknown
© 2006 Microchip Technology Inc.
DS21935C-page 17
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