LM93CIMT National Semiconductor, LM93CIMT Datasheet - Page 34

• Manufacturer Part Number: LM93CIMT
• Description: Microprocessor Support IC
• Manufacturer: National Semiconductor

Specifications of LM93CIMT

• Peak Reflow Compatible (260 C): No
• Supply Voltage Max: 3.6V
• Leaded Process Compatible: No
• Supply Voltage Min: 3V
• Operating Temperature Min: 0��C
• Package / Case: 56-TSSOP
• Operating Temperature Max: 85°C
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant

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FACTORY REGISTERS
BMC ERROR STATUS REGISTERS
HOST ERROR STATUS REGISTERS
VALUE REGISTERS
x
16.0 Registers
16.1 REGISTER WARNINGS
In most cases, reserved registers and register bits return zero when read. This should not be relied upon, since reserved registers
can be used for future expansion of the LM93 functions.
Some registers have “N/D” for their default value. This means that the power-up default of the register is not defined. In the case
of value registers, care should be taken to ensure that software does not read a value register until the associated measurement
function has acquired a measurement. This applies to temperatures, voltages, fan RPM, and PROCHOT monitoring. In the case
of other registers, such as fan control settings, N/D means that software must initialize these registers to ensure they have a
known value before setting the START bit in the LM93 Configuration register.
16.2 REGISTER SUMMARY TABLE
XOR Test
SMBus Test
Reserved
Manufacturer ID
Version/Stepping
B_Error Status 1
B_Error Status 2
B_Error Status 3
B_Error Status 4
B_P1_PROCHOT Error Status
B_P2_PROCHOT Error Status
B_GPI Error Status
B_Fan Error Status
H_Error Status 1
H_Error Status 2
H_Error Status 3
H_Error Status 4
H_P1_PROCHOT Error Status
H_P2_PROCHOT Error Status
H_GPI Error Status
H_Fan Error Status
Zone 1 (CPU1) Temp
Zone 2 (CPU2) Temp
Zone 3 (Internal) Temp
Zone 4 (External Digital) Temp
Zone 1 (CPU1) Filtered Temp
Register Name
N/D
N/A
R
R/W
RWC
Address Default
00h
01h
02h-3Dh N/D
3Eh
3Fh
40h
41h
42h
43h
44h
45h
46h
47h
48h
49h
4Ah
4Bh
4Ch
4Dh
4Eh
4Fh
50h
51h
52h
53h
54h
Term
Not Defined
Not Applicable
Read Only
Read or Write
Read or Write to Clear
00h
N/D
01h
73h
00h
00h
00h
00h
00h
00h
00h
00h
00h
00h
00h
00h
00h
00h
00h
00h
N/D
N/D
N/D
N/D
00h
Register Key
34
Description
Used to set the XOR test tree mode
SMBus read/write test register
Contains manufacturer ID code
Contains code for major and minor revisions
BMC error status register 1
BMC error register 2
BMC error register 3
BMC error register 4
BMC error register for P1_PROCHOT
BMC error register for P2_PROCHOT
BMC error register for GPIs
BMC error register for Fans
HOST error status register 1
HOST error register 2
HOST error register 3
HOST error register 4
HOST error register for P1_PROCHOT
HOST error register for P2_PROCHOT
HOST error register for GPIs
HOST error register for Fans
Measured value of remote thermal diode temperature channel
1
Measured value of remote thermal diode temperature channel
2
Measured temperature from on-chip sensor
Measured temperature from external temperature sensor
Filtered value of remote thermal diode temperature channel 1
Description