R1610C RDC Semiconductor, R1610C Datasheet - Page 103

• Manufacturer Part Number: R1610C
• Description: High Performance 16 Bits MCU Integrated One 10/100M Mac Controller - 3.3V Operating Voltage/2.5V Core Voltage
• Manufacturer: RDC Semiconductor

R
4.
5.
6.
7.
Note:
Data Sheet
Final Version 1.5
October 27, 2003
R
31 30 29 28 27 26 25 24 23 22 21 20 19 18 17 16 15 14 13 12 11 10
31-20
19-0
15-6
1. RX Descriptor start address and Data Buffer start address must be Double-Word alignment.
2. The RX packet will be filtered out if its length is less than 6. (Not complete DA information.)
5-0
Bit
15
Bit
D
DRNX
HIDX
Reserve2
Reserve3
D
14
C
C
DRNX
Name
Name
HIDX
Rsvd
Rsvd
13
®
®
Reserved
R
R
I
I
S
S
C
C
D
D
12
S
S
Reserved
RX Next Frame Descriptor Pointer. This is a 20-bit descriptor address pointer and DRNX
[1:0] is always 2’b00. This field must be pointed to next descriptor start address or its start
address.
Reserved.
HIDX[5:0] is a hit hash index. If MCR1[14] is set to 1, the hash index number will be written
into RX description.
P
P
C
C
o
o
m
m
m
m
u
u
11
n
n
Reserved
i
i
c
c
a
a
t
t
i
i
o
o
n
n
10
9
8
7
6
Description
Description
5
4
Fast Ethernet RISC Processor
DRNX
9
3
HIDX
8
7
2
6
5
1
R1610C
4
0
3
2
1
103
0