VSC6134
Datasheet
Write Operation
The following figure shows a flowchart of the sequence of events for a write operation:
Figure 61. Write Operation Sequence for Motorola Synchronous Interface
Microprocessor
VSC6134
•
Place Address on
ADDR[11:0]
Set RWN =0
Strobe TSN.
•
•
Latch Address
Determine Read or
Write Command
•
•
Place data on DATA[15:0]
Tristate DATA[15:0]
•
•
•
Latch Data
Write Data to Register
Assert TAN
•
Negate TAN
Start New Cycle
The following figure shows the timing diagram for the write operation.
Figure 62. Timing for a Write Operation of Synchronous Motorola Microprocessors
mpu_clk
addr[11:0]
register_address
S0
D0
tsn
S1
csn
rwn
S2
D3
D1
D4
tan
S3
data[15:0]
Data
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VMDS-10185 Revision 4.0
July 2006
VITESSE [ VITESSE SEMICONDUCTOR CORPORATION ]
