GR740-UM-DS, Nov 2017, Version 1.7 355 www.cobham.com/gaisler
GR740
29.3.2 Tempereature sensor status register
Table 449.0x04 - STATUS - Status register
29.3.3 Temperature sensor threshold register
Table 450.0x08 - THRES - Threshold register
31 30 24 23 22 16 15 14 11 10 9 8 7 6 0
RMAXR MIN S
C
L
K
RESERVED WE U
P
D
A
L
A
C
T
RDATA
0 0 0 0x7F 0 0 0 0 0 0 0
rrw*rrw*rrrw*r*wcr r
31 RESERVED
30: 24 Maximum value (MAX) - Maximum DATA value read from sensor. Can be written to any value
when WE field is set to ’1’.
23 RESERVED
22: 16 Minimum value (MIN) - Minimum DATA value read from sensor. Can be written to any value when
WE field is set to ’1’.
15 Sensor clock (SCLK) - Read-only value of current state of sensor clock signal.
14: 11 RESERVED
10 Write enable (WE) - When this field is set to ’1’ then the MAX and MIN fields can be set in the same
write operation. This field is immediately reset to ’0’ to prevent accidental writes to the MAX and
MIN fields.
9 Updated (UPD) - This bit is set to ’1’ whenever a new DATA value is read from the sensor. The bit is
reset to ’0’ when software reads this status register.
8 Alarm active (ALACT) - This bit get set to ’1’ when the DATA value read from the sensor is greater-
or-equal to the value in the threshold register. When this bit transitions from 0 to 1 then the core will
also generate an interrupt. This bit is cleared by writing ’1’ to this field, writes of ’0’ have no effect.
7RESERVED
6: 0 Data value (DATA) - Latest data value read from sensor. When this field is updated by the controller,
the UPD field will also get set to ’1’.
31 76 0
RESERVED THRES
00
rrw
31: 7 RESERVED
6: 0 Threshold (THRES) - Threshold value for alarm. When the ALEN field in the core’s control register
is set to ’1’ and a new DATA value is read from the sensor then the THRES value is compared with
the DATA value. If THRES >= DATA then the status register bit ALACT will be set to ’1’.
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