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RDY signal input in DMA transfer to external memory can RDY be accepted

Latest Updated:03/15/2012

Question:

When the RDY signal is input during the DMA transfer to the external memory, can the RDY signal be accepted?

Answer:

The RDY signal can be accepted even during the DMA transfer. However, please set CSiW bit of the CSR Register to "0" (with wait) for the CSi area (i=0 to 3) allocated to the external memory during the DMA transfer to the external memory.
Suitable Products
M16C/62A
M16C/62A(M16C/62T)
M16C/62M
M16C/62N
M16C/62N(M3062GF8NFP, M3062GF8NGP)
M16C/62P
M16C/63
M16C/64A
M16C/64C
M16C/65
M16C/65C
M16C/6C
M16C/6N4, M16C/6N5
M16C/6NK, M16C/6NL, M16C/6NM, M16C/6NN
M16C/30P