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Freescale Semiconductor MPC5200B ユーザーズマニュアル

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BestComm DMA Registers—MBAR+0x1200
MPC5200B Users Guide, Rev. 1
Freescale Semiconductor
13-5
13.15.2
SDMA Current Pointer Register—MBAR + 0x1204
 
13.15.3
SDMA End Pointer Register—MBAR + 0x1208
 
13.15.4
SDMA Variable Pointer Register—MBAR + 0x120C
 
Table 13-2. SDMA Current Pointer Register
msb  0
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
R
CurrentPointer
W
RESET:
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31 lsb
R
CurrentPointer
W
RESET:
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
Bit
Name
Description
0:31
currentPointer
CurrentPointer contains the address of the currently executing DMA descriptor.
Table 13-3. SDMA End Pointer Register
msb  0
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
R
EndPointer
W
RESET:
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31 lsb
R
EndPointer
W
RESET:
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
Bit
Name
Description
0:31
endPointer
EndPointer contains the address of the last descriptor in the currently executing SDMA 
task.
Table 13-4. SDMA Variable Pointer Register
msb  0
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
R
VariablePointer
W
RESET:
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0