AT32UC3B0512_1 Datasheet, PDF (419/676 Pages) ATMEL Corporation – 32-bit AVR® Microcontroller

22.8.1.6 Features Register
Register Name:
Access Type:
Offset:
Read Value:
UFEATURES
Read-Only
0x081C
-
AT32UC3B
31
30
29
28
27
26
25
24
-
-
-
-
-
-
-
-
23
22
21
20
19
18
17
16
-
-
-
-
-
-
-
-
15
BYTEWRITE
DPRAM
14
13
12
FIFOMAXSIZE
11
10
9
8
DMAFIFOWORDDEPTH
7
6
5
4
3
2
1
0
DMABUFFE
RSIZE
DMACHANNELNBR
EPTNBRMAX
• BYTEWRITEDPRAM: DPRAM Byte-Write Capability
1: The DPRAM is natively byte-write capable.
0: The DPRAM byte write lanes have shadow logic implemented in the USBB IP interface.
• FIFOMAXSIZE: Maximal FIFO Size
This field indicates the maximal FIFO size, i.e., the DPRAM size:
FIFOMAXSIZE
0
0
0
0
0
1
0
1
0
0
1
1
1
0
0
1
0
1
1
1
0
1
1
1
Maximal FIFO Size
< 256 bytes
< 512 bytes
< 1024 bytes
< 2048 bytes
< 4096 bytes
< 8192 bytes
< 16384 bytes
>= 16384 bytes
32059I–06/2010
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