CDCD5704 Datasheet, PDF (4/17 Pages) Texas Instruments – Rambus TM XDR TM CLOCK GENERATOR

CDCD5704
SCAS823 – DECEMBER 2006
Command Code Definition
Bit
C7
(C6:C0)
Description
1 = byte-write/-read or word-write/-read operation
Byte offset for byte-write/-read or word-write/-read operation
Command Code for Byte-Write/-Read
Operation
Byte 0
Byte 1
Byte 2
Hex Code
80h
81h
82h
C7
C6
C5
C4
C3
C2
1
0
0
0
0
0
1
0
0
0
0
0
1
0
0
0
0
0
Command Code for Word-Write/-Read
Operation
Word 0: Byte 0 and byte 1
Word 1: Byte 1 and byte 2
Hex Code
80h
81h
C7
C6
1
0
1
0
C5
C4
C3
C2
0
0
0
0
0
0
0
0
Serial Interface Generic Programming Sequence
1
7
11
S
Slave Address
Wr A
8
Data Byte
11
AP
www.ti.com
C1
C0
0
0
0
1
1
0
C1
C0
0
0
0
1
S Start Condition
Sr Repeated Start Condition
Rd Read (Bit Value = 1)
Wr Write (Bit Value = 0)
A Acknowledge (ACK = 0 and NACK = 1)
P Stop Condition
PE Packet Error
Master-to-Slave Transmission
Slave-to-Master Transmission
Byte-Write Programming Sequence
1
7
11
S
Slave Address
Wr A
8
Command Code
Byte-Read Programming Sequence
1
7
11
S
Slave Address
Wr A
8
Command Code
8
11
...
Data Byte
AP
1
M0053-01
1
8
11
A
Data Byte
AP
11
AS
7
Slave Address
11
Rd A
4
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