Board Users Guide

BestComm DMA Registers—MBAR+0x1200
MPC5200B Users Guide, Rev. 1
Freescale Semiconductor 13-23
13.15.26 SDMA task 0 & task Size 1 map
13.15.27 SDMA Reserved Register 1—MBAR + 0x1268
Bit Name Description
srcSize[1:0] Each of the 16 tasks can be programmed to use the source and destination sizes
contained in one of the Task Size Registers. The task size information is used by the SDMA
module to determine the source and destination transfer size of the operands. When the
size contained the task descriptor is set to 2’b11 then the size field from the Task Size
Control register is selected.
srcSize[1:0] - source size
00 - Word (32 bit)
01 - Byte
10 - Word
11 - Word
destSize[1:0] - destination size
00 - Word (32 bit)
01 - Byte
10 - Word
11 - Word
Table 13-27. SDMA task Size Map
Offset Register Name Byte 0 Byte 1 Byte 2 Byte 3 Access
0x1260 task Size 0 TS[0:1] TS[2:3] TS[4:5] TS[5:7] R/W
0x1264 task Size 1 TS[8:9] TS[10:11] TS[12:13] TS[14:15] R/W
Bit Name Description
See Table 13-26 for details. Each task has 4 bits allocated (2 for source and 2 for
destination Size)
Table 13-28. SDMA Reserved Register 4
msb 012345678 9 101112131415
R
res1
W
RESET:0 00000000 0 0 0 00 0 0
16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 lsb
R
res1
W
RESET:0 00000000 0 0 0 00 0 0
Bit Name Description
0:31 res1 Reserved