Flow Of Data Transfer By Macro Service (Type C) - NEC PD78212 User Manual

µ PD78214 Sub-Series
Read contents of macro service mode register
332
Fig. 12-25 Flow of Data Transfer by Macro Service (Type C)
Accepts macro service request
Identify channel type
TYPE C
Read channel pointer contents (m)
Read memory addressed by MPT
Automatic addition?
No
Transfer data to compare register
Retains MPT?
No
Increment MPTL
Read memory addressed by MPD
Transfer data to buffer register
Increment MPDL
1
Other factors
To other macro service processing
Yes
Add data to compare register
Yes