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R01UH0336EJ0102 Rev.1.02
Page 207 of 1538
Jul 17, 2014
V850E2/PG4-L
Section 5 DMA Module
5.4.3
Availability of Writing to Control Registers
Control registers can be classified into the two groups shown in the table
below: those which are always writable and those for which writing is
prohibited while DMA transfer is enabled. However, all of the registers are
always readable.
Note: n = 0 to 7
Table 5-5
Availability of Writing to Control Registers
Availability of Writing
Register Name
Always writable
DTRC0, DNSAnL, DNSAnH, DNSCn, DNDAnL,
DNDAnH, DNDCn, DNTCn, DTSn
Writing prohibited while DMA transfer is enabled
(DTSnDTE = 1)
Operation is not guaranteed if writing to these registers is
attempted during while DMA transfer.
DTRSn, DSAnL, DSAnH, DSCn, DDAnL,
DDAnH, DDCn, DTCn, DTCCn, DTCTn
Содержание V850 Series
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