MPC8536E-ANDROID Freescale Semiconductor, MPC8536E-ANDROID Datasheet - Page 995
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MPC8536E-ANDROID
Manufacturer Part Number
MPC8536E-ANDROID
Description
HARDWARE/SOFTWARE ANDROID OS
Manufacturer
Freescale Semiconductor
Series
PowerQUICC ™r
Type
MPUr
Datasheets
1.MPC8536EBVTAVLA.pdf
(127 pages)
2.MPC8536EBVTAVLA.pdf
(2 pages)
3.MPC8536EBVTAVLA.pdf
(1706 pages)
Specifications of MPC8536E-ANDROID
Contents
Board
For Use With/related Products
MPC8536
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
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15.3.1.1
The mode register allows software to start a DMA transfer and to control various DMA transfer
characteristics.
Table 15-5
Freescale Semiconductor
Offset 0x100
Reset
Reset
11–12
Bits
0–3
4–7
8–9
10
13
W
W
R
R
0x180
0x200
0x280
SAHTS DAHE SAHE
16
0
EMP_EN External master pause enable. Valid only if MR n [EMS_EN] is set.
EMS_EN External master start enable. This bit does not apply to single-write start modes (direct or chaining).
Name
BWC
17
—
—
—
describes the MRn fields.
Mode Registers (MR n )
—
18
Figure 15-4
Reserved
Bandwidth/pause control. Defined when single and multiple channels are executing or if MR n [EMP_EN] is
set in external transfer mode.
The value of MR n [BWC] determines how many bytes a given channel is allowed to transfer before the DMA
engine pauses the current channel and re-arbitrates (switches to the next channel).
In external pause mode, the value of MR n [BWC] dictates how many bytes are allowed to transfer before
pausing the channel, after which a new assertion of DREQ resumes channel operation.
0000 1 byte
0001 2 bytes
0010 4 bytes
0011 8 bytes
0100 16 bytes
0101 32 bytes
0110 64 bytes
Reserved
0 Disable the external master pause feature.
1 Enable the external master pause feature. Channel is paused as described by MR n [BWC].
Reserved
0 Disable the channel from being started by an external DMA start pin.
1 Enable the channel to be started by an external DMA start pin, which sets MR n [CS].
MPC8536E PowerQUICC III Integrated Processor Reference Manual, Rev. 1
19
3
—
20
4
describes the MRn.
SRW EOSIE EOLNIE EOLSIE EIE
21
Figure 15-4. DMA Mode Registers (MR n )
BWC
Table 15-5. MR n Field Descriptions
22
23
7
All zeros
All zeros
24
8
—
Description
25
9
0111 128 bytes
1000 256 bytes
1001 512 bytes
1010 1024 bytes
1011–1110 Reserved
1111 Disable bandwidth sharing to allow
EMP_EN
XFE
10
26
uninterrupted transfers from each channel.
CDSM/SWSM
11
27
—
CA
12
28
Access: Read/Write
EMS_EN DAHTS
CTM
13
29
DMA Controller
CC CS
14
30
15-9
15
31
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