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Section 8 Data Transfer Controller (DTC)
8.1
Overview
The SH7040 Series has an on-chip data transfer controller (DTC), which is activated either by
interrupts or software and can perform data transfers.
8.1.1
Features
•
Arbitrary channel number transfer setting possible
Transfer information can be established for each interrupt source
Transfer information stored in memory
Multiple data transfers possible (chain transfers) for one activating source
•
Address space: 32-bit addresses can be designated for both transfer source and destination
•
Transfer devices
Memory: On-chip ROM, on-chip RAM, external ROM, external RAM
On-chip peripheral modules (excluding DMAC/DTC)
Memory-mapped external devices
•
Abundant transfer modes
Can select between normal mode/repeat mode/block transfer mode
Can select between increment/decrement/fixed for source/destination address
•
Transfer units can be set as byte/word/longword
•
Interrupts activating the DTC can be requested of the CPU
Interrupt requests can be generated to the CPU after completion of a data transfer
Interrupt requests generated to the CPU after completion of all designated data transfers
•
Transfers can be activated by software
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