TC1796
System Units (Vol. 1 of 2)
Direct Memory Access Controller
User’s Manual 12-81 V2.0, 2007-07
DMA, V2.0
The Channel Interrupt Control Register control the interrupts generation.
DMA_CHICR0x (x = 0-7)
DMA Channel 0x Interrupt Control Register
(x*20
H
+88
H
) Reset Value: 0000 0000
H
DMA_CHICR1x (x = 0-7)
DMA Channel 1x Interrupt Control Register
(x*20
H
+188
H
) Reset Value: 0000 0000
H
31 30 29 28 27 26 25 24 23 22 21 20 19 18 17 16
0
r
1514131211109876543210
IRDV INTP WRPP INTCT
WRP
DE
WRP
SE
rw rw rw rw rw rw
Field Bits Type Description
WRPSE 0rwWrap Source Enable
0
B
Wrap source buffer interrupt disabled
1
B
Wrap source buffer interrupt enabled
WRPDE 1rwWrap Destination Enable
0
B
Wrap destination buffer interrupt disabled
1
B
Wrap destination buffer interrupt enabled
INTCT [3:2] rw Interrupt Control
00
B
No interrupt will be generated on changing the
TCOUNT value. The bit INTSR.ICHmx is set when
TCOUNT equals IRDV.
01
B
No interrupt will be generated on changing the
TCOUNT value. The bit INTSR.ICHmx is set when
TCOUNT is decremented.
10
B
An interrupt is generated and bit INTSR.ICHmx is
set each time TCOUNT equals IRDV.
11
B
Interrupt is generated and bit INTSR.ICHmx is set
each time TCOUNT is decremented.
To Next Page
Loading...
Need help?
General