HD6417615 Hitachi Semiconductor, HD6417615 Datasheet - Page 453

• Manufacturer Part Number: HD6417615
• Description: Hardware Manual
• Manufacturer: Hitachi Semiconductor

10.2.15 Receiving-Descriptor Fetch Address Register (RDFAR)
This is the register for storing the descriptor start address that is required when the E-DMAC
fetches descriptor information from the receiving descriptor . Which receiving descriptor
information is used for processing by the E-DMAC can be recognized by monitoring addresses
displayed in this register.
Bits 31 to 0—Receiving-descriptor fetch address (RDFA): This bit can only be read. Writing is
disabled.
Note: The descriptor fetch processing result from the E-DMAC and the value read by the
438
Initial value:
Initial value:
Initial value:
Initial value:
register may not be the same.
R/W:
R/W:
R/W:
R/W:
Bit:
Bit:
Bit:
Bit:
RDFA31 RDFA30 RDFA29 RDFA28 RDFA27 RDFA26 RDFA25 RDFA24
RDFA23 RDFA22 RDFA21 RDFA20 RDFA19 RDFA18 RDFA17 RDFA16
RDFA15 RDFA14 RDFA13 RDFA12 RDFA11 RDFA10 RDFA9
RDFA7
31
23
15
0
R
0
R
0
R
7
0
R
RDFA6
30
22
14
0
R
0
R
0
R
6
0
R
RDFA5
29
21
13
0
R
0
R
0
R
5
0
R
RDFA4
28
20
12
0
R
0
R
0
R
4
0
R
RDFA3
27
19
11
0
R
0
R
0
R
3
0
R
RDFA2
26
18
10
0
R
0
R
0
R
2
0
R
RDFA1
25
17
0
R
0
R
9
0
R
1
0
R
RDFA8
RDFA0
24
16
0
R
0
R
8
0
R
0
0
R