MEC1322 Datasheet, PDF (266/456 Pages) Microchip Technology – Keyboard and Embedded Controller for Notebook PC

MEC1322
21.9.4 DMA CHANNEL N MEMORY START ADDRESS
Offset ^04h
Bits
Description
31:0 MEMORY_START_ADDRESS
This is the starting address for the Memory device.
Type
R/W
This field is updated by Hardware after every packet transfer by the
size of the transfer, as defined by DMA Channel Control:Channel
Transfer Size while the DMA Channel Control:Increment Memory
Address is Enabled.
The Memory device is defined as the device that is the slave device
in the transfer.
21.9.5
ex. With Hardware Flow Control, the Memory device is the device
that is not connected to the Hardware Flow Controlling device.
Note:
This field is only as large as the maximum allowed AHB
Address Size in the system. If the HADDR size is 24 Bits,
then Bits [31:24] will be RESERVED.
DMA CHANNEL N MEMORY END ADDRESS
Offset ^08h
Bits
Description
31:0 MEMORY_END_ADDRESS
This is the ending address for the Memory device.
Type
R/W
This will define the limit of the transfer, so long as DMA Channel
Control:Increment Memory Address is Enabled. When the Memory
Start Address is equal to this value, the DMA will terminate the trans-
fer and flag the status DMA Channel Interrupt:Status Done.
Note:
This field is only as large as the maximum allowed AHB
Address Size in the system. If the HADDR size is 24 Bits,
then Bits [31:24] will be RESERVED.
Default
0000h
Reset
Event
RESET
Default
0000h
Reset
Event
RESET
DS00001719D-page 266
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