3 current pointer (cp), Current pointer (cp) -7 – Freescale Semiconductor MCF5480 User Manual
Page 727
Memory Map/Register Definitions
MCF548x Reference Manual, Rev. 3
Freescale Semiconductor
24-7
24.3.3.3
Current Pointer (CP)
31
30
29
28
27
26
25
24
23
22
21
20
19
18
17
16
R
Task Base Address
W
Reset
Uninitialized
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
0
R
Task Base Address
W
Reset
Uninitialized
Reg
Addr
MBAR + 0x8000
Figure 24-3. Task Base Address Register (TaskBAR)
Table 24-2. TaskBAR Field Descriptions
Bits
Name Description
31–0
Task Base Address
Task base address. Pointer to the base address of the DMA task table.
31
30
29
28
27
26
25
24
23
22
21
20
19
18
17
16
R
Descriptor Pointer
W
Reset
Uninitialized
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
0
R
Descriptor Pointer
W
Reset
Uninitialized
Reg
Addr
MBAR + 0x8004
Figure 24-4. Current Pointer Register (CP)
Table 24-3. CP Field Descriptions
Bits
Name Description
31–0
Descriptor
Pointer
Descriptor pointer. Pointer to the address of the DMA descriptor that is currently executing.