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MEC1322 датащи(PDF) 265 Page - Microchip Technology

номер детали MEC1322
подробное описание детали  Keyboard and Embedded Controller for Notebook PC
PDF  456 Pages
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производитель  MICROCHIP [Microchip Technology]
домашняя страница  http://www.microchip.com
Logo MICROCHIP - Microchip Technology

MEC1322 датащи(HTML) 265 Page - Microchip Technology

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 2014 - 2015 Microchip Technology Inc.
DS00001719D-page 265
MEC1322
21.9.1
DMA MAIN CONTROL
21.9.2
DMA DATA PACKET
Note 21-2
The letter ‘N’ following DMA Channel indicates the Channel Number. Each Channel implemented will
have these registers to determine that channel’s operation.
21.9.3
DMA CHANNEL N ACTIVATE
Offset
00h
Bits
Description
Type
Default
Reset
Event
7:2 Reserved
R
-
-
1 SOFT_RESET
Soft reset the entire module.
This bit is self-clearing.
W0b
-
0 ACTIVATE
Enable the blocks operation.
1=Enable block. Each individual channel must be enabled separately.
0=Disable all channels.
R/WS
0b
RESET
Offset
04h
Bits
Description
Type
Default
Reset
Event
31:0 DATA_PACKET
Debug register that has the data that is stored in the Data Packet.
This data is read data from the currently active transfer source.
R
0000h
-
TABLE 21-10: CHANNEL EC-ONLY REGISTER SUMMARY
Offset
Register Name (Mnemonic)
(
Note 21-2)
00h
DMA Channel N Activate
04h
DMA Channel N Memory Start Address
08h
DMA Channel N Memory End Address
0Ch
DMA Channel N Device Address
10h
DMA Channel N Control
14h
DMA Channel N Interrupt Status
18h
DMA Channel N Interrupt Enable
Offset
00h
Bits
Description
Type
Default
Reset
Event
7:1 Reserved
R
-
-
0 CHANNEL_ACTIVATE
Enable this channel for operation.
The DMA Main Control:Activate must also be enabled for this chan-
nel to be operational.
R/W
0h
RESET



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