Datasheet

AT30TSE004A [DATASHEET]
Atmel-8868C-DTS-AT30TSE004A-Datasheet_122013
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6.2.7.1 Temperature Register Format
This section will clarify the Temperature Register format and temperature bit value assignments utilized for
temperature for the following registers: Upper Limit, Lower Limit, Critical Alarm, and Temperature Registers.
The temperatures expressed in the Upper Limit, Lower Limit, Critical Alarm, and Temperature Registers are
indicated in 2’s complement format. In each of the temperature limit registers, bits 12 through bit two are utilized
for temperature settings, or in the case of the Temperature Register, holds the internal temperature
measurement with bits 12 through bit one allowing 0.125ºC resolution.
Table 6-15 indicates the Temperature Register’s assigned bit values utilized for temperature and shows
examples for the Temperature Register bit values for various temperature readings.
Table 6-15. Temperature Register Format
Table 6-16. Temperature Register Examples
Position Bit 12 Bit 11 Bit 10 Bit 9 Bit 8 Bit 7 Bit 6 Bit 5 Bit 4 Bit 3 Bit 2 Bit 1 Bit 0
Bit Value SIGN 128°C 64°C 32°C 16°C 8°C 4°C 2°C 1°C 0.5°C 0.25°C 0.125°C X
Temperature Register Value Examples
Temperature Binary (Bit 15 – Bit 0)
+125°C xxx0 0111 1101 00xx
+99.75°C xxx0 0110 0011 11xx
+85°C xxx0 0101 0101 00xx
+39°C xxx0 0010 0111 00xx
+15.75°C xxx0 0000 1111 11xx
+0.25°C xxx0 0000 0000 01xx
0°C xxx0 0000 0000 00xx
-0.25°C xxx1 1111 1111 11xx
-1°C xxx1 1111 1110 00xx
-20°C xxx1 1110 1100 00xx