Datasheet
Table Of Contents
- Features
- Temperature Sensor Features
- Serial EEPROM Features
- Table of Contents
- 1. Description
- 2. Pin Descriptions and Pinouts
- 3. Block Diagram
- 4. Device Communication
- 5. Device Addressing
- 6. Temperature Sensor
- 6.1 Functional Description
- 6.2 Register Descriptions
- 6.2.1 Pointer Register (8-bit Write Only, Address = N/A)
- 6.2.2 Capability Register (16-bit Read-only, Address = 00h)
- 6.2.3 Configuration Register (16-bit Read/Write, Address = 01h)
- 6.2.4 Upper Limit Register (16-bit Read/Write, Address = 02h)
- 6.2.5 Lower Limit Register (16-bit Read/Write, Address = 03h)
- 6.2.6 Critical Alarm Register (16-bit Read/Write, Address = 04h)
- 6.2.7 Temperature Register (16-bit Read-only, Address = 05h)
- 6.2.8 Manufacturer ID Register (16-bit Read-only, Address = 06h)
- 6.2.9 Device ID Register (16-bit Read-only, Address = 07h)
- 6.3 Temperature Sensor Write Operations
- 6.4 Temperature Sensor Read Operations
- 7. Serial EEPROM
- 8. Electrical Specifications
- 9. Ordering Code Detail
- 10. Ordering Information
- 11. Part Markings
- 12. Package Drawings
- 13. Revision History
AT30TSE004A [DATASHEET]
Atmel-8868C-DTS-AT30TSE004A-Datasheet_122013
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6.3 Temperature Sensor Write Operations
Writing to the Temperature Register of the AT30TSE004A is accomplished through a modified Write operation
for two data bytes. To maintain 2-wire compatibility, the 16-bit registers are accessed through a Pointer Register
requiring the TS Write sequence to include a Pointer Register byte following the device address byte to write the
two data bytes. Figure 6-2 illustrates the entire Write transaction.
Figure 6-2. Temperature Sensor Register Write Operation
SCL
SDA
Start
by
Master
ACK
from
Slave
ACK
from
Slave
Device Address Byte Pointer Register Byte
MSB MSB
1 2 3 4 5 6 7 8 9 1 2 3 4 5 6 7 8 9
0 0 1 1 A2 A1 A0 0 0 0
Start
by
Master
ACK
from
Slave
ACK
from
Slave
Most Significant Data Byte
Least Significant Data Byte
Stop
by
Master
MSB MSB
1 2 3 4 5 6 7 8 9 1 2 3 4 5 6 7 8 9
D15 D14 D13 D12 D11 D10 D9 D8 0 D7 D6 D5 D4 D3 D2 D1 D0 0
P7 P6 P5 P4 P3 P2 P1 P0