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Is it OK to use external bus during on-chip flash reprogram processing?

Latest Updated:04/19/2013

Question:

When receiving data through the bus from the device connected to the outside and writing the data into the on-chip flash, is it possible to use the external bus during the on-chip flash reprogram processing?

Answer:

The external bus can be used during the on-chip flash reprogram processing.

However, please note that the following restrictions are applied when reprogramming the on-chip flash.
· The programs should be executed in the on-chip RAM.
· The access to the on-chip flash area using DMAC/DTC and interrupt is prohibited.

Suitable Products
SH7285, SH7286
SH7243
SH7214, SH7216
SH7231
SH7239, SH7237
SH7211
SH7146, SH7149
SH7131, SH7132, SH7136, SH7137
SH7083, SH7084, SH7085, SH7086