R1610C RDC Semiconductor, R1610C Datasheet - Page 115

• 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
Note: The first TX descriptor start address TDSA [19:0] = {MTDSA1 [3:0], MTDSA0 [15:0]} must be Double-Word
PS. Initial this register only when XMTEN=0
PS. Initial this register only when RCVEN=0
Note: The first RX descriptor start address RDSA [19:0] = {MRDSA1 [3:0], MRDSA0 [15:0]} must be Double-Word
Data Sheet
Final Version 1.5
October 27, 2003
R
20.16
20.17
Register Offset:
Register Name:
Reset Value
15-4
Register Offset:
Register Name:
Reset Value
15-1
3-0
15
Bit
15
Bit
0
0
D
D
alignment. MAC will update the TX descriptor start address when the previous TX has been finished.
alignment. MAC will update the RX descriptor start address after the previous RX has been finished.
TDSA [19:16]
14
14
RDSA [15:1]
C
MTDSA1: TX Descriptor Start Address 1 (30h)
MRDSA0: RX Descriptor Start Address 0 (34h)
C
Name
Name
Rsvd
0
0
13
13
®
®
:
:
R
R
I
I
S
S
C
C
30h
MTDSA1: TX Descriptor Start Address 1
0000h
34h
MRDSA0: RX Descriptor Start Address 0
0000h
D
D
12
12
S
S
P
P
Attribute
Attribute
C
C
o
o
m
m
R/W
RW
m
RO
RO
RO
m
u
u
11
11
n
n
i
i
c
c
a
a
t
t
i
i
o
o
n
n
This bit must be 0.
Reserved.
TX Descriptor Start Address Bit 19-6 that are currently being sent.
RX Descriptor Start Address Bit 15-1.
This bit must be 0.
10
10
Reserved
9
9
RDSA [15:1]
8
8
7
7
6
6
Description
Description
5
5
4
4
Fast Ethernet RISC Processor
3
3
TDSA [19:16]
2
2
1
1
R1610C
0
0
0
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