AT91SAM9M10-G45-EK Atmel, AT91SAM9M10-G45-EK Datasheet - Page 888
AT91SAM9M10-G45-EK
Manufacturer Part Number
AT91SAM9M10-G45-EK
Description
KIT EVAL FOR AT91SAMG45/9M10
Manufacturer
Atmel
Series
AT91SAM Smart ARMr
Type
MCUr
Specifications of AT91SAM9M10-G45-EK
Contents
Board, Cables, Power Supply
Processor To Be Evaluated
AT91SAM9M10
Processor Series
AT91SAM9
Data Bus Width
32 bit
Interface Type
RS-232, Ethernet, USB, JTAG
Operating Supply Voltage
5 V
Silicon Manufacturer
Atmel
Core Architecture
AVR
Kit Contents
Board
Features
Two High Speed USB Hosts, LCD TFT Display
Svhc
No SVHC (15-Dec-2010)
Mcu Supported Families
AT91SAM9M10,
Rohs Compliant
Yes
For Use With/related Products
AT91SAM9M10
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
AT91SAM9M10-G45-EK
Manufacturer:
INFINEON
Quantity:
10 000
Company:
Part Number:
AT91SAM9M10-G45-EK
Manufacturer:
Atmel
Quantity:
135
- Current page: 888 of 1404
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38.6.22
Name:
Addresses:
Access:
• CHANN_ENB: Channel Enable Status
0 = if cleared, the DMA channel no longer transfers data, and may load the next descriptor if the UDPHS_DMACONTROLx
register LDNXT_DSC bit is set.
When any transfer is ended either due to an elapsed byte count or a UDPHS device initiated transfer end, this bit is auto-
matically reset.
1 = if set, the DMA channel is currently enabled and transfers data upon request.
This bit is normally set or cleared by writing into the UDPHS_DMACONTROLx register CHANN_ENB bit field either by soft-
ware or descriptor loading.
If a channel request is currently serviced when the UDPHS_DMACONTROLx register CHANN_ENB bit is cleared, the
DMA FIFO buffer is drained until it is empty, then this status bit is cleared.
• CHANN_ACT: Channel Active Status
0 = the DMA channel is no longer trying to source the packet data.
When a packet transfer is ended this bit is automatically reset.
1 = the DMA channel is currently trying to source packet data, i.e. selected as the highest-priority requesting channel.
When a packet transfer cannot be completed due to an END_BF_ST, this flag stays set during the next channel descriptor
load (if any) and potentially until UDPHS packet transfer completion, if allowed by the new descriptor.
• END_TR_ST: End of Channel Transfer Status
0 = cleared automatically when read by software.
1 = set by hardware when the last packet transfer is complete, if the UDPHS device has ended the transfer.
Valid until the CHANN_ENB flag is cleared at the end of the next buffer transfer.
• END_BF_ST: End of Channel Buffer Status
0 = cleared automatically when read by software.
1 = set by hardware when the BUFF_COUNT downcount reach zero.
Valid until the CHANN_ENB flag is cleared at the end of the next buffer transfer.
888
31
23
15
–
7
–
AT91SAM9M10
UDPHS DMA Channel Status Register
DESC_LDST
30
22
14
UDPHS_DMASTATUSx [x = 1..5]
0xFFF7832C [1], 0xFFF7833C [2], 0xFFF7834C [3], 0xFFF7835C [4], 0xFFF7836C [5]
Read-write
–
6
END_BF_ST
29
21
13
–
5
END_TR_ST
28
20
12
–
4
BUFF_COUNT
BUFF_COUNT
27
19
11
–
3
–
26
18
10
–
2
–
CHANN_ACT
25
17
9
–
1
6355B–ATARM–21-Jun-10
CHANN_ENB
24
16
8
–
0
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