Data Sheet

www.austriamicrosystems.com/LED-Driver-ICs/AS1115 Revision 1.08 11 - 25
AS1115
Datasheet - D e t a iled D e s c r iptio n
Command Byte
The AS1115 operation, (see Table 6) is determined by a command byte (see Figure 21 on page 11).
Figure 21. Command Byte
Figure 22. Command and Single Data Byte Received
Figure 23. Setting the Pointer to a Address Register to select a Data Register for a Read Operation
Figure 24. Reading nBytes from AS1115
D15 D14 D13 D12 D11 D10 D09 D08
MSB 6 5 4 3 2 1 LSB
From Master to Slave
From Slave to Master
A A PAS
Command Byte
Data ByteSlave Address
D14 D13 D12 D11 D10 D9 D8D15 D6 D5 D4 D3 D2 D1 D0D7
Acknowledge
from AS1115
0 00
Acknowledge
from AS1115
Acknowledge
from AS1115
R/W
0
AS1115 Registers
Autoincrement
Memory Word
Address
1 Byte
From Master to Slave
From Slave to Master
A PAS
Command Byte
Slave Address
D14 D13 D12 D11 D10 D9 D8D15
00
Acknowledge
from AS1115
Acknowledge
from AS1115
R/W
0
AS1115 Registers
From Master to Slave
From Slave to Master
A /A PAS First Data Byte
Second Data ByteSlave Address
D6 D5 D4 D3 D2 D1 D0D7 D6 D5 D4 D3 D2 D1 D0D7
Not Acknowledge
from Master
0 10
Acknowledge
from Master
Acknowledge
from AS1115
R/W
1
AS1115 Registers
Auto increment
Memory Word
Address
n Bytes
Auto increment
to next address
Stop reading
ams AG
Technical content still valid