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MAC7200 Datasheet(PDF) 562 Page - Freescale Semiconductor, Inc

Part # MAC7200
Description  MAC7200 Microcontroller Family Reference Manual
PDF  976 Pages
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Manufacturer  FREESCALE [Freescale Semiconductor, Inc]
Direct Link  http://www.freescale.com
Logo FREESCALE - Freescale Semiconductor, Inc

MAC7200 Datasheet(HTML) 562 Page - Freescale Semiconductor, Inc

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Memory Map and Register Definition
MAC7200 Microcontroller Family Reference Manual, Rev. 2
484
Freescale Semiconductor
Address: Base + xx – 1
Access: User read/write
765
43210
R
ENBL
TRIG
SOURCE
W
Reset
00000000
Figure 27-2. Channel Configuration Registers (CHCONFIGxx)
Table 27-3. CHCONFIGxx Field Descriptions
Field
Description
7
ENBL
DMA Channel Enable. ENBL enables the DMA Channel
0 DMA channel is disabled. This mode is primarily used during configuration of the DMA Mux. The DMA
has separate channel enables/disables, which should be used to disable or re-configure a DMA
channel.
1 DMA channel is enabled
6
TRIG
DMA Channel Trigger Enable (Channels 0–7 only). TRIG enables the periodic trigger capability for the
DMA Channel
0 Triggering is disabled. If triggering is disabled, and the ENBL bit is set, the DMA Channel will simply
route the specified source to the DMA channel.
1 Triggering is enabled
5–0
SOURCE
DMA Channel Source. SOURCE specifies which DMA source, if any, is routed to a particular DMA
channel, according to Table 27-5.
Table 27-4. Channel and Trigger Enabling
ENBL
TRIG
Function
Mode
0
X
DMA Channel is disabled
Disabled Mode
1
0
DMA Channel is enabled with no triggering (transparent)
Normal Mode
1
1
DMA Channel is enabled with triggering
Periodic Trigger Mode
Table 27-5. SOURCE Configuration
Source
Value
IIC Transmit
0x01
IIC Receive
0x02
DSPI_A Transmit
0x03
DSPI_A Receive
0x04
DSPI_B Transmit
0x05
DSPI_B Receive
0x06
DSPI_C Transmit
0x23
DSPI_C Receive
0x24
ESCI_A Transmit
0x07



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