as8510 austriamicrosystems, as8510 Datasheet - Page 24

• Manufacturer Part Number: as8510
• Description: Data Acquisition Device For Battery Sensors
• Manufacturer: austriamicrosystems

AS8510
Datasheet - D e t a i l e d D e s c r i p t i o n
Figure 11. Protocol for Serial Data Write with Length = 4
7.8.3 Read Command
For Read command C0=1. After the command code C0, the address of register to be read is provided from MSB to LSB. Then one or more data
bytes can be transferred from the SPI slave to the master, always from MSB to LSB. To transfer more bytes from consecutive addresses, SPI
master keeps CS signal LOW and SPI clock active as long as it desires to read data from the slave. Each bit of the command and address of the
frame is to be driven by the SPI master on the SPI clock transfer edge where SPI slave samples it on the next SPI clock edge.
Each bit of the data section of the frame is driven by the SPI slave on the SPI clock transfer edge and SPI master samples it on the next SPI
clock edge. These edges are determined as per
Figure 12. Protocol for Serial Data Read with Length = 1
www.austriamicrosystems.com/AS8510
SCLK
SDO
SDI
CS
SCLK
SDO
SDI
CS
0
A
6
A
5
A
4
A
3
A
2
A
1
A
0
1
D
7
D
6
A6
D
5
D
Table 29
4
D
3
A5
moved to Address
D
2
Data D7-D0 is
A4-A0 here
D
1
A4
D
0
and examples of read command without and with address self-increment.
D
7
D
6
A3
D
5
D
4
A2
D
3
moved to Address
D
2
A4-A0 +1 here
Data D7-D0 is
Revision 3.4
D
A1
1
D
0
D
7
A0
D
6
D
5
Address A4..A0 is
D7
Data D7 – D0 at
D
4
D
read here
3
moved to Address
D
D6
2
A4-A0 +2 here
Data D7-D0 is
D
1
D
0
D5
D
7
D
6
D
5
D4
D
4
D
3
moved to Address
D3
D
2
A4-A0 +3 here
Data D7-D0 is
D
1
D
D2
0
D
7
D
6
D1
D
5
D
4
D
3
D0
moved to Address
D
2
A4-A0 +4 here
Data D7-D0 is
D
1
D
0
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