Rx_b buffer descriptor pointer offset register, Rx_c buffer descriptor pointer offset register – Digi NS9215 User Manual
Page 324
E T H E R N E T C O M M U N I C A T I O N M O D U L E
RX_B Buffer Descriptor Pointer Offset register
324
Hardware Reference NS9215
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R X _ B B u f f e r D e s c r i p t o r P o i n t e r O f f s e t r e g i s t e r
Address: A060 0A2C
Register
Register bit
assignment
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
R X _ C B u f f e r D e s c r i p t o r P o i n t e r O f f s e t r e g i s t e r
Address: A060 0A30
Register
Reserved
RXBOFF
13
12
11
10
9
8
7
6
5
4
3
2
1
0
15
14
31
29
28
27
26
25
24
23
22
21
20
19
18
17
16
30
Reserved
Bits
Access
Mnemonic
Reset
Description
D31:11
N/A
Reserved
N/A
N/A
D10:00
R
RXBOFF
0x000
Contains an 11-bit byte offset from the start of the pool B
ring. The offset is updated at the end of the RX packet,
and will have the offset to the next buffer descriptor that
will be used. RXBOFF can be used to determine where
the
RX_RD
logic will put the next packet.
Reserved
RXCOFF
13
12
11
10
9
8
7
6
5
4
3
2
1
0
15
14
31
29
28
27
26
25
24
23
22
21
20
19
18
17
16
30
Reserved