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SA56004X
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?NXP B.V. 2013. All rights reserved.
Product data sheet
Rev. 7  25 February 2013
13 of 43
NXP Semiconductors
SA56004X
Digital temperature sensor with overtemperature alarms
 
[1]   POR default TH = 0Ah (10 癈).
7.8.7   Programmable offset register (remote only)
 
[1]   POR default RTOHB = RTOLB = 00h.
[2]   POR default RTOLB = 00h.
7.8.8   ALERT mode register (AM)
 
D[7:1] is not defined and defaults to logic 0.
D0: The ALERT
 output is in interrupt mode when this bit is LOW. The ALERT
 output is in
comparator mode when this bit is HIGH.
7.8.9   Other registers
The Manufacturers ID register has a default value A1h (1010 0001) and a read address
FEh.
The Die Revision Code register has a default value 00h (0000 0000) and read address
FFh. This register increments by 1 every time there is a revision to the die.
7.8.10   One-shot register
The one-shot register is used to initiate a single conversion and comparison cycle when
the device is in the standby mode; upon completion of the single conversion cycle, the
device returns to the standby mode. It is not a data register; it is the write operation that
causes the one-shot conversion. The data written to this register is not stored; an FFh
value will always be read from this register. To initiate a one-shot operation, send a
standard write command with the command byte of 0Fh (One-Shot Write Address).
Table 14.   TH - T_CRIT hysteresis register
Byte
Single high byte (read/write address 21h)
[1]
Bit
D7
D6
D5
D4
D3
D2
D1
D0
Value
-
-
-
16
8
4
2
1
Table 15.   RTOHB, RTOLB - Remote temperature offset registers
Byte
High byte (read/write address 11h)
[1]
Low byte (read/write address 12h)
[2]
Bit
D7
D6
D5
D4
D3
D2
D1
D0
D7
D6
D5
D4
D3
D2
D1
D0
Value
sign
64
32
16
8
4
2
1
0.5    0.25   0.125
0
0
0
0
0
Table 16.   AM - ALERT mode register
Read and write address BFh.
Bit
D7
D6
D5
D4
D3
D2
D1
D0
Value
0
0
0
0
0
0
0
ALERT mode
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