LM96000CIMT National Semiconductor, LM96000CIMT Datasheet - Page 16

• Manufacturer Part Number: LM96000CIMT
• Description: IC,Data Acquisition System,7-CHANNEL,8-BIT,TSSOP,24PIN,PLASTIC
• Manufacturer: National Semiconductor

Specifications of LM96000CIMT

• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant

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Bit
7
Register
Address
44h
45h
46h
47h
48h
49h
4Ah
4Bh
4Ch
4Dh
Register
Address
4Eh
4Fh
Functional Description
Register
Address
43h
Input
2.5V
VCCP
3.3V
5V
12V
4.10 Register 43h: VID
The VID register contains the values of LM96000 VID0–VID4 input pins. This register indicates the status of the VID lines that
interconnect the processor to the Voltage Regulator Module (VRM). Software uses the information in this register to determine the
voltage that the processor is designed to operate at. With this information, software can then dynamically determine the correct
values to place in the VCCP Low Limit and VCCP High Limit registers.
This register is read only — a write to this register has no effect.
4.11 Registers 44-4Dh: Voltage Limit Registers
If a voltage input either exceeds the value set in the voltage high limit register or falls below the value set in the voltage low limit
register, the corresponding bit will be set automatically by the LM96000 in the interrupt status registers (41-42h). Voltages are
presented in the registers at
shown in Table 2.
Setting the Ready/Lock/Start/Override register Lock bit has no effect on these registers.
4.12 Registers 4E-53h: Temperature Limit Registers
Name
Remote Diode
2 Fault
Nominal
Voltage
2.5V
2.25V
3.3V
5.0V
12.0V
Read/
Write
R/W
R/W
Read/
Write
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
Read/
Write
R
Register
Name
Processor (Zone1)
Low Temp
Processor (Zone1)
High Temp
Register
Name
2.5V Low Limit
2.5V High Limit
VCCP Low Limit
VCCP High Limit
3.3V Low Limit
3.3V High Limit
5V Low Limit
5V High Limit
12V Low Limit
12V High Limit
Register
Name
VID0–4
Register Setting at
Nominal Voltage
C0h
C0h
C0h
C0h
C0h
R/W
R
3
⁄
4
full scale for the nominal voltage, meaning that at nominal voltage, each input will be C0h, as
Bit 7
(MSB)
RES
Default
0
TABLE 2. Voltage Limits vs Register Setting
(Continued)
Bit 7
(MSB)
7
7
7
7
7
7
7
7
7
7
Bit 7
(MSB)
7
7
Bit 6
RES
Maximum
Voltage
3.32V
3.00V
4.38V
6.64V
16.00V
Description
The LM96000 automatically sets this bit to 1 when there is either a short
or open circuit fault on the Remote2+ or Remote2− thermal diode input
pins. A diode fault will also set bit 6, Diode 2 Zone Limit bit, of Interrupt
Status Register 1.
Bit 6
6
6
6
6
6
6
6
6
6
6
Bit 6
6
6
Bit 5
RES
16
Bit 5
5
5
5
5
5
5
5
5
5
5
Bit 5
5
5
Register Reading at
Maximum Voltage
FFh
FFh
FFh
FFh
FFh
Bit 4
VID4
Bit 4
4
4
4
4
4
4
4
4
4
4
Bit 4
4
4
Bit 3
VID3
Bit 3
3
3
3
3
3
3
3
3
3
3
Bit 3
3
3
Bit 2
VID2
Minimum
Voltage
0V
0V
3.0V
0V
0V
Bit 2
2
2
2
2
2
2
2
2
2
2
Bit 2
2
2
Bit 1
VID1
Bit 1
1
1
1
1
1
1
1
1
1
1
Bit 1
1
1
Register Reading at
Minimum Voltage
00h
00h
AFh
00h
00h
Bit 0
(LSB)
VID0
Bit 0
(LSB)
0
0
0
0
0
0
0
0
0
0
Bit 0
(LSB)
0
0
Default
Value
Default
Value
00h
FFh
00h
FFh
00h
FFh
00h
FFh
00h
FFh
Default
Value
81h
7Fh