LM32EVAL National Semiconductor, LM32EVAL Datasheet - Page 16

• Manufacturer Part Number: LM32EVAL
• Description: BOARD EVALUATION LM32
• Manufacturer: National Semiconductor
• Series: SensorPath™r

Specifications of LM32EVAL

• Sensor Type: Temperature
• Sensing Range: 0°C ~ 85°C
• Interface: 1-Wire
• Sensitivity: ±1°C
• Voltage - Supply: 3 V ~ 3.6 V
• Embedded: Yes, MCU, 8-Bit
• Utilized Ic / Part: LM32
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant

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000 010 Device ID
000 011
2.0 Register Set
2.5 DEVICE ID (Addr: 000 010; 02h)
The device ID is defined by the manufacturer of the device and is unique for each device produced by a manufacturer. Bits 15-11
identify the revision number of the die and will be incremented upon revision of the device.
2.6 CAPABILITIES FIXED (Addr: 000 011; 03h)
The value of this register defines the capabilities of the LM32. The LM32 supports one function, that of Temperature Measurement
type. Please refer to the SensorPath specification for further details on other FuncDescriptor values.
2.7 DEVICE STATUS (Addr: 000 100; 04h)
This register is set to the reset value by a Device Reset.
Reg Add
Add
Add
Reg
Reg
000 100
15-11
10-0
3-1
6-5
Bit
Bit
0
4
7
Register
Name
Register
Name
Capabilities
Fixed
Type
Type
RO
RO
RO
RO
RO
RO
RO
Register Name
Device Status
DeviceID (Device ID Value) A fixed value that identifies the device.
RevID (Revision ID Value) A fixed value that identifies the device revision.
SF1 (Status Function 1) This bit is set by a Function Event within Function 1. Event details are function
dependent and are described within the function. SF1 is cleared by Device Reset or by handling the event
within the Temperature Measurement Function (see Section 2.9 for further details).
0: Status flag for Function 1 is inactive (no event).
1: Status flag for Function 1 is active indicating that a Function Event has occurred.
Reserved. Will always read "0".
ERF1 (Error Function 1) This bit is set in response to an error indication within Function 1. ERF1 is cleared
by Device Reset or by handling the error condition within the Temperature Measurement Function (see
Section 2.9 for further details).
0: No error occurred in Function 1.
1: Error occurred in Function 1.
Reserved. Will always read "0".
BER (Bus Error) This bit is set when the device either generates, or receives an error indication in the ACK
bit of the transaction (i.e., no-acknowledge). BER is cleared by Device Reset or by reading the Device Status
register.
0: No transaction error occurred.
1: An ACK bit error (no-acknowledge) occurred during the last transaction.
R/
W
R/
W
R
R
23h
Val
Val
(Continued)
1h
O
R
O
R
P
P
MSb
MSb
Bit
Bit
15
15
0
0
R/
W
R
Bit
Bit
14
14
0
0
RevID
Val
0h
P
O
R
Bit
Bit
13
13
0
0
Bit
Bit
12
12
0
0
Bit 7
BER
Bit
Bit
11
11
0
0
16
Description
Bit 6
Description
Reserved
Bit
Bit
10
10
0
0
0
Res
Bit
Bit
9
0
9
0
Bit 5
0
Bit
Bit
8
0
8
0
Bit
Bit
ERF1
Bit 4
7
0
7
0
Bit
Bit
6
0
6
0
DeviceID
Bit 3
Bit
Bit
0
5
1
5
0
Bit
Bit
4
0
4
0
Bit 2
Res
0
Bit
Bit
3
0
3
0
FuncDescriptor1
Bit 1
Bit
Bit
2
0
2
0
0
Bit
Bit
1
1
1
0
Bit 0
LSb
SF1
LSb
LSb
Bit
Bit
0
1
0
1