ASC7531A ETC2 [List of Unclassifed Manufacturers], ASC7531A Datasheet - Page 10

• Manufacturer Part Number: ASC7531A
• Description: LOW-VOLTAGE 1-WIRE DIGITAL TEMPERATURE SENSOR AND VOLTAGE MONITOR
• Manufacturer: ETC2 [List of Unclassifed Manufacturers]

ReadReg()
Reads from the sensor’s internal registers.
Write Data Length:
Read Data Length:
Command Code:
Example bus transaction to read a sensor located at address 0x48. This example reads 2 consecutive locations (0x20 and 0x21).
VenCmdEnable()
Vendor Command Enable enables the Vendor Specified Extensions.
Write Data Length:
Read Data Length:
Command Code:
VenCmdDisable()
Vendor Command Disable disables the Vendor Specified Extensions.
Write Data Length:
Read Data Length:
Command Code:
© Andigilog, Inc. 2006
Target Address
Target Address
Target Address
0x48
0x48
0x48
8
8
8
RAM Addr
RAM Addr
0x20
0x20
8
8
Write Length
Write Length
Write Length
0x01
0x01
0x02 (command + address)
N (Number of bytes to read)
0xE1
0x01
0x00
0xE2
8
0x01
0x00
0xE3
8
0x02
8
Write Data
0x25
0x9D
FCS
8
8
Read Length
Read Length
0x00
0x00
Figure 14. Vendor Command Disable
Figure 13. Vendor Command Enable
8
8
Read Length
Figure 11. Example Register Write
Figure 12. Example Register Read
0x02
8
Read Data
Write Data
0x28
0x25
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8
8
Command
Command
0xE2
0xE3
8
8
- 10 -
Command
0xE1
8
Read Data
0x1B
0x28
FCS
8
8
FCS
0xE0
FCS
0xE7
8
8
aSC7531A / aSC7531B
0x37
FCS
December
2006 - 70A05012