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R01UH0336EJ0102 Rev.1.02
Page 214 of 1538
Jul 17, 2014
V850E2/PG4-L
Section 5 DMA Module
5.5.7
DNSAnH (n = 0 to 7): DMA Next Source Address Register H
This 16-bit register forms the 16 higher-order bits of a 32-bit register used to
set the next source for transfer over the corresponding DMA channel.
Access
This register is readable/writable in 16-bit units.
Address
DNSA7H: FFFF 746E
H
, DNSA6H: FFFF 743E
H
, DNSA5H: FFFF 740E
H
,
DNSA4H: FFFF 73DE
H
, DNSA3H: FFFF 73AE
H
, DNSA2H: FFFF 737E
H
,
DNSA1H: FFFF 734E
H
, DNSA0H: FFFF 731E
H
Initial value
0000
H
This register is initialized by a reset from any source.
15
14
13
12
11
10
9
8
DNSAn
NSAV
0
0
DNSAn
NSA28
DNSAn
NSA27
DNSAn
NSA26
DNSAn
NSA25
DNSAn
NSA24
R/W
R
R
R/W
R/W
R/W
R/W
R/W
7
6
5
4
3
2
1
0
DNSAn
NSA23
DNSAn
NSA22
DNSAn
NSA21
DNSAn
NSA20
DNSAn
NSA19
DNSAn
NSA18
DNSAn
NSA17
DNSAn
NSA16
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
Bit Position
Bit Name
Function
15
DNSAnNSAV
DMA next source address valid
This bit controls whether to copy the address from the DMA next source
address register to the DMA source address register on completion of DMA
transfer. It is cleared once the address has been copied.
0: Does not copy/copying completed
1: Copies/copying not completed
12 to 0
DNSAnNSA28
to
DNSAnNSA16
DMA next source address
These bits specify the 13 higher-order bits of the source address for the next
transfer on channel n.