CY28412
Table 3. Block Read and Block Write Protocol
(continued)
Block Write Protocol
Bit
....
....
....
....
....
....
......................
Data Byte (N – 1) – 8 bits
Acknowledge from slave
Data Byte N – 8 bits
Acknowledge from slave
Stop
Description
Bit
39:46
47
48:55
56
....
....
....
Table 4. Byte Read and Byte Write Protocol
Byte Write Protocol
Bit
1
2:8
9
10
11:18
Start
Slave address – 7 bits
Write = 0
Acknowledge from slave
Command Code – 8 bits
'100xxxxx' stands for byte operation, bits[6:0] of the
command code represents the offset of the byte to
be accessed
Acknowledge from slave
Data byte from master – 8 bits
Acknowledge from slave
Stop
Description
Bit
1
2:8
9
10
11:18
Start
Slave address – 7 bits
Write = 0
Acknowledge from slave
Command Code – 8 bits
'100xxxxx' stands for byte operation, bits[6:0] of
the command code represents the offset of the
byte to be accessed
Acknowledge from slave
Repeat start
Slave address – 7 bits
Read = 1
Acknowledge from slave
Data byte from slave – 8 bits
Acknowledge from master
Stop
Byte Read Protocol
Description
Block Read Protocol
Description
Data byte from slave – 8 bits
Acknowledge from master
Data byte from slave – 8 bits
Acknowledge from master
Data byte N from slave – 8 bits
Acknowledge from master
Stop
19
20:27
28
29
19
20
21:27
28
29
30:37
38
39
Control Registers
Byte 0:Control Register 0
Bit
7
6
5
4
3
2
1
0
@Pup
1
1
1
1
1
1
1
1
Name
CPUT2_ITP/SRCT6
CPUC2_ITP/SRCC6
SRC[T/C]5
SRC[T/C]4
SRC[T/C]3
SATAT/C]
SRC[T/C]2
SRC[T/C]1
SRC[T/C]0
Description
CPU[T/C]2_ITP/SRC[T/C]6 Output Enable
0 = Disable (Hi-Z), 1 = Enable
SRC[T/C]5 Output Enable
0 = Disable (Hi-Z), 1 = Enable
SRC[T/C]4 Output Enable
0 = Disable (Hi-Z), 1 = Enable
SRC[T/C]3 Output Enable
0 = Disable (Hi-Z), 1 = Enable
SATA[T/C] Output Enable
0 = Disable (Hi-Z), 1 = Enable
SRC[T/C]2 Output Enable
0 = Disable (Hi-Z), 1 = Enable
SRC[T/C]1 Output Enable
0 = Disable (Hi-Z), 1 = Enable
SRC[T/C]0 Output Enable
0 = Disable (Hi-Z), 1 = Enable
Rev 1.0, November 20, 2006
Page 4 of 16
SPECTRALINEAR [ SPECTRALINEAR INC ]
