NUC945ADN Datasheet, PDF (84/333 Pages) Nuvoton Technology Corporation – 32-BIT ARM926EJ-S BASED MCU

NUC945ADN
32-BIT ARM926EJS-BASED MCU
Receive Descriptor Link List Start Address Register (RXDLSA)
The Rx descriptor defined in EMC is a link-list data structure. The RXDLSA keeps the starting address of
this link-list. In other words, the RXDLSA keeps the starting address of the 1^st Rx descriptor. S/W must
configure RXDLSA before enable bit RXON of MCMDR register.
Register
RXDLSA
Address
0xB000_308C
R/W Description
R/W ^{Receive Descriptor Link List Start Address Register}
Reset Value
0xFFFF_FFFC
31
30
29
28
27
26
25
24
RXDLSA
23
22
21
20
19
18
17
16
RXDLSA
15
14
13
12
11
10
9
8
RXDLSA
7
6
5
4
3
2
1
0
RXDLSA
Bits
[31:0]
Descriptions
RTXDLSA
Receive Descriptor Link-List Start Address
The RXDLSA keeps the start address of receive descriptor link-list. If the S/W
enables the bit RXON of MCMDR register, the content of RXDLSA will be
loaded into the current receive descriptor start address register (CRXDSA).
The RXDLSA doesn’t be updated by EMC. During the operation, EMC will
ignore the bits [1:0] of RXDLSA. This means that each Rx descriptor always
must locate at word boundary memory address.
Publication Release Date: Jun 18, 2010
84
Revision: A5