32
TMC211 DATASHEET (V. 1.04 / January 7, 2005)
6.9.9 Reading Frame Type#7 (Preparing frame)
A preparing frame prepares a particular slave node, that it has to answer after the next reading frame.
Preparing frames are needed when using indirect ID. Type#7 preparing frame consists of a
dynamically assigned identifier, the command indicating which kind of information is to provide to the
master and the physical address of the slave.
ID
Data1
Data2
ID [7:0]
Identifier
CMD [6:0]
Command
AD [6:0]
Physical
Address
6.9.10 Reading Frame Type#8 (Preparing frame)
Type#8 preparing frame uses the reserved identifier 0x3C, followed by the application command 0x80,
then the particular reading command and the physical address is provided to the slave.
ID
Data1
Data2
Data3
Data4
Data8
ID [7:0]
AppCMD [7:0]
CMD [6:0]
Command
AD [6:0]
0xFF
0xFF
0xFF
Identifier
0x3C
AppCMD
0x80
Slave
Address
Data 4...8 = 0xFF
Copyright © 2004-2005 TRINAMIC Motion Control GmbH & Co. KG
TRINAMIC [ TRINAMIC MOTION CONTROL GMBH & CO. KG. ]
