SBAS475A June 2009 – January 2023 AMC6821-Q1
PRODUCTION DATA
Local Temperature Data Register Bits: [LT10:LT0]
Bits [LT10:LT0] are the newest local temperature reading.
Remote Temperature Register Bits: [RT10:RT0]
Bits [RT10:RT0] are the newest remote temperature reading.
Bit 7 (MSB) | Bit 6 | Bit 5 | Bit 4 | Bit 3 | Bit 2 | Bit 1 | Bit 0 (LSB) |
---|---|---|---|---|---|---|---|
LT2 | LT1 | LT0 (LSB) | 0 | 0 | RT2 | RT1 | RT0 |
Bits [LT2:LT0] are the three LSBs of the newest local temperature reading.
Bits [RT2:RT0] are the three LSBs of the newest remote temperature reading.
Bit 7 (MSB) | Bit 6 | Bit 5 | Bit 4 | Bit 3 | Bit 2 | Bit 1 | Bit 0 (LSB) |
---|---|---|---|---|---|---|---|
LT10 (MSB) | LT9 | LT8 | LT7 | LT6 | LT5 | LT4 | LT3 |
Bits [LT10:LT3] are the eight MSBs of the newest local temperature reading.
Bit 7 (MSB) | Bit 6 | Bit 5 | Bit 4 | Bit 3 | Bit 2 | Bit 1 | Bit 0 (LSB) |
---|---|---|---|---|---|---|---|
RT10 (MSB) | RT9 | RT8 | RT7 | RT6 | RT5 | RT4 | RT3 |
Bits [RT10:RT3] are the eight MSBs of the newest remote temperature reading.
It is important to note that temperature can be read as an 8-bit value (with 1°C resolution) from the Temp-DATA-Hbyte register, or as an 11-bit value (with 0.125°C resolution) from the Temp-DATA-LByte and Temp-DATA-HByte registers. If only 1°C resolution is required, the temperature readings can be read back at any time and in no particular order. If the 11-bit measurement is required, this involves a two-register read for each measurement. The Temp-DATA-LByte register (0x06) should be read first. This condition causes all temperature reading registers to be frozen until the Remote-Temp-DATA-HByte Register (0x0B) is read. This architecture also prevents an MSB reading from being updated while the 3LSBs are being read, and vice versa. See the Reading Temperature Data section for details.