CY28354-400
Table 2. Block Read and Block Write Protocol
Block Write Protocol
Block Read Protocol
Description
Bit
1
Description
Bit
1
Start
Start
2:8
9
Slave address – 7 bits
Write = 0
2:8
9
Slave address – 7 bits
Write = 0
10
Acknowledge from slave
10
Acknowledge from slave
11:18
Command Code – 8 bits
'00000000' stands for block operation
11:18
Command Code – 8 bits
'00000000' stands for block operation
19
20:27
28
Acknowledge from slave
Byte Count from master – 8 bits
Acknowledge from slave
Data byte 0 from master – 8 bits
Acknowledge from slave
Data byte 1 from master – 8 bits
Acknowledge from slave
Data bytes from master/Acknowledge
Data Byte N – 8 bits
19
20
Acknowledge from slave
Repeat start
21:27
28
Slave address – 7 bits
Read = 1
29:36
37
29
Acknowledge from slave
Byte count from slave – 8 bits
Acknowledge
38:45
46
30:37
38
....
39:46
47
Data byte 0 from slave – 8 bits
Acknowledge
....
....
Acknowledge from slave
Stop
48:55
56
Data byte 1 from slave – 8 bits
Acknowledge
....
....
Data bytes from slave/Acknowledge
Data byte N from slave – 8 bits
Not Acknowledge
....
....
....
Stop
• Reserved and unused bits should be programmed to “0”
• SMBus Address for the CY28354 is as follows.
Serial Configuration Map
• TheSerialbitswillbereadbytheclockdriverinthefollowing
order.
A6 A5 A4 A3 A2 A1 A0 R/W
Byte 0 – Bits 7, 6, 5, 4, 3, 2, 1, 0
Byte 1 – Bits 7, 6, 5, 4, 3, 2, 1, 0
Byte N – Bits 7, 6, 5, 4, 3, 2, 1, 0
SEL ADDR = 1
SEL ADDR = 0
1
1
1
1
0
0
1
1
0
1
0
1
1
0
—
—
Rev 1.0,November 22, 2006
Page 3 of 8
SPECTRALINEAR [ SPECTRALINEAR INC ]
