ARM ARM DUI 0224I manual SYSDMAP0-2 mapping register format, DMA mapping register format

Models: ARM DUI 0224I

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Programmer’s Reference

 

 

Figure 4-21 SYS_DMAP0-2 mapping register format

 

 

 

Table 4-34 DMA mapping register format

 

 

 

Bit

Access

Description

 

 

 

[31:8]

-

Reserved

 

 

 

[7]

Read/write

Set to 1 to enable mapping

 

 

 

[6:5]

-

Reserved

 

 

 

[4:0]

Read/write

FPGA peripheral mapped to this channel

 

 

b00000

= AACI Tx

 

 

b00001

= AACI Rx

 

 

b00010

= USB Aa

 

 

b00011

= USB B

 

 

b00100

= MCI 0

 

 

b00101

= MCI 1

 

 

b00110

= UART3 Tx

 

 

b00111

= UART3 Rx

 

 

b01000

= SCI0 int A

 

 

b01001

= SCI0 int B

b01010–b11111 Reserved

a.The OTG243 controller provides three USB interfaces, OTG (USB1), USB2, USB3, and OTG. The OTG243, however, has only two DMA control channels, USB A and USB B, that are managed by the USBDACK[1:0] and USBDRQ[1:0] signals. To assign a DMA channel to a USB interface, both the DMA mapping register and the OTG243 must be programmed.

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ARM DUI 0224I

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ARM ARM DUI 0224I manual SYSDMAP0-2 mapping register format, DMA mapping register format