MAX1668_03 Datasheet, PDF (14/17 Pages) Maxim Integrated Products – Multichannel Remote/Local Temperature Sensors

Multichannel Remote/Local
Temperature Sensors
Table 5. Configuration Byte Bit Assignments
BIT
7 (MSB)
NAME
MASKALL
6
RUN/STOP
5
MASK4*
4
MASK3*
3
MASK2
2
MASK1
0
IBIAS1
1
IBIAS0
*Not available for MAX1805.
POR
0
0
0
0
0
0
0
0
FUNCTION
Masks all ALERT interrupts when high.
Standby mode control bit. If high, the device immediately stops converting and
enters standby mode. If low, the device converts.
Masks remote DX4 interrupts when high.
Masks remote DX3 interrupts when high.
Masks remote DX2 interrupts when high.
Masks remote DX1 interrupts when high.
Medium/low-bias control bit. High = low bias, low = medium bias. IBIAS0 must be low.
High-bias control bit. High bias on DXP_ when high. Overrides IBIAS1.
Table 6. Status Byte Bit 1 Assignments
BIT
7 (MSB)
6
5
4
3
2
1
0
NAME
BUSY
LHIGH^†
LLOW^†
OPEN^†
ALARM^†
N/A
N/A
N/A
FUNCTION
A high indicates that the ADC is busy converting.
A high indicates that the local high-temperature alarm has activated.
A high indicates that the local low-temperature alarm has activated.
A high indicates one of the remote-diode continuity (open-circuit) faults.
A high indicates one of the remote-diode channels has over/undertemperature alarm.
N/A
N/A
N/A
†_{These flags stay high until cleared by POR, or until the status byte register is read.}
Table 7. Status Byte 2 Bit Assignments
BIT
7 (MSB)
6
5
4
3
2
1
0
NAME
RLOW1
RHIGH1
RLOW2
RHIGH2
RLOW3*
RHIGH3*
RLOW4*
RHIGH4*
FUNCTION
A high indicates that the DX1 low-temperature alarm has activated.
A high indicates that the DX1 high-temperature alarm has activated.
A high indicates that the DX2 low-temperature alarm has activated.
A high indicates that the DX2 high-temperature alarm has activated.
A high indicates that the DX3 low-temperature alarm has activated.
A high indicates that the DX3 high-temperature alarm has activated.
A high indicates that the DX4 low-temperature alarm has activated.
A high indicates that the DX4 high-temperature alarm has activated.
Note: All flags in this byte stay high until cleared by POR or until the status byte is read.
*Not available for MAX1805.
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