7 Use DVP-PM As Slave
DVP-PM Application Manual
7-1
7.1 Access between DVP-EH2, DVP-PM (as Master) and DVP-PM (as Slave)
When DVP-PM is used as Slave, there is a data exchange area in DVP-PM which corresponds to the control
registers (CRs) in the Master. The data exchange area is consisted of consecutive special registers, and users
can utilize the data exchange area for accessing data between Master and Slave as well as performing motion
control functions through a Slave DVP-PM.
7.1.1 The Structure
îš‹ DVP-EH2 and Master DVP-PM apply FROM/TO instructions to transmit commands to Slave DVP-PM
for executing motion control subroutines.
îš‹ DVP-EH2 and Master DVP-PM apply FROM/TO instructions to access the control registers (CR#0 ~
CR#199, corresponding to special registers D1500 ~ D1699 in the Slave) in Slave DVP-PM.
D1500
D1501~D1699
CR#0 ~ CR#199
DVP-EH2/DVP-PM
Master
DVP-PM
Slave
Master accesses the data in Slave
by FROM/TO instruction
Model
code
FROM/TO
data exchange area
Special
registers
Users move the
data to be exchanged
into data exchange area
.
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