LM95234_07 NSC [National Semiconductor], LM95234_07 Datasheet - Page 15

• Manufacturer Part Number: LM95234_07
• Description: Quad Remote Diode and Local Temperature Sensor with SMBus Interface and TruTherm Technology
• Manufacturer: NSC [National Semiconductor]

b) TCRIT2 Mask Register, Status Register 1 and 3, and
a) TCRIT1 Mask Register, Status Register 1 and 2, and
TCRIT1 output logic diagram.
TCRIT2 output logic diagram.
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If enabled, local temperature is compared to the user pro-
grammable Local Tcrit Limit Register (Default Value = 85°C).
The result of this comparison is stored in Status Register 2,
Status Register 3 and Status Register 4 (see Figure 5).The
comparison result can trigger TCRIT1 pin, TCRIT2 pin or
TCRIT3 pin depending on the settings in the TCRIT1 Mask,
TCRIT2 Mask and TRCIT3 Mask Registers (see Figure 6).
The comparison result can also be read back from the Status
Register 2, Status Register 3 and Status Register 4.
If enabled, remote temperature 1 is compared to the user
programmable Remote 1 Tcrit-1 Limit Register (Default Value
110°C) and Remote 1 Tcrit-2 Limit Register (Default Value =
85°C). The result of this comparison is stored in Status Reg-
ister 2, Status Register 3 and Status Register 4 (see Figure
5). The comparison result can trigger TCRIT1 pin, TCRIT2 pin
or TCRIT3 pin depending on the settings in the TCRIT1 Mask,
TCRIT2 Mask and TRCIT3 Mask Registers (see Figure 6).
The comparison result can also be read back from the Status
Register 2, Status Register 3 and Status Register 4. The re-
mote temperature 2 operates in a similar manner to remote
temperature 1 using its associated user programmable limit
registers: Remote 2 Tcrit-1 Limit Register (Default Value 110°
C) and Remote 2 Tcrit-2 Limit Register (Default Value = 85°
C). When enabled, the remote temperature 3 is compared to
the user programmable Remote 3 Tcrit Limit Register (Default
Value 85°C). The comparison result can trigger TCRIT1 pin,
TCRIT2 pin or TCRIT3 pin depending on the settings in the
TCRIT1 Mask, TCRIT2 Mask and TCRIT3 Mask Registers.
The comparison result can also be read back from the Status
Register 2, Status Register 3 and Status Register 4. The re-
mote temperature 4 operates in a similar manner to remote
temperature 3 using its associated user programmable limit
register: Remote 4 Tcrit Limit Register (Default Value 85°C).
FIGURE 6. Logic diagrams for the TCRIT1, TCRIT2, and
c) TCRIT3 Mask Register, Status Register 1 and 4, and
TCRIT3 output logic diagram.
TCRIT3 outputs.
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