R1610C RDC Semiconductor, R1610C Datasheet - Page 57

• 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
Data Sheet
Final Version 1.5
October 27, 2003
R
Register Offset:
Register Name:
Reset Value
15-4
Register Offset:
Register Name:
Reset Value
15-0 DDA[15:0]
Register Offset:
Register Name:
Reset Value
15-4
3-0
3-0
15
Bit
15
Bit
15
Bit
D
D
DSA[19:16]
DDA[19:16]
14
14
14
C
Name
C
Name
Name
Rsvd
Rsvd
13
13
13
®
®
:
:
:
R
R
I
I
S
S
Attribute
C
Attribute
C
Attribute
C6h (DMA0)
DMA0 Destination Address High Register
──
C4h (DMA0)
DMA0 Destination Address Low Register
──
C2h (DMA0)
DMA0 Source Address High Register
──
D
D
12
12
12
S
S
R/W
R/W
P
P
R/W
RO
RO
C
C
o
o
m
m
m
m
u
u
11
11
11
n
n
i
i
c
c
a
a
t
t
Reserved
High DMA 0 Destination Address.
These bits are mapped to A[19:16] during a DMA transfer when the destination
address is in memory space or I/O space. If the destination address is in I/O space
(64Kbytes), these bits must be programmed to 0000b.
Low DMA 0 Destination Address.
These bits are mapped to A[15:0] during a DMA transfer.
The value of DDA [19:0] will be incremented or decremented by 2 or 1 after each
DMA transfer.
Reserved
High DMA 0 Source Address.
These bits are mapped to A[19:16] during a DMA transfer when the source
address is in memory space or I/O space. If the source address is in I/O space
(64Kbytes), these bits must be programmed to 0000b
i
i
o
o
n
n
10
10
10
Reserved
9
9
9
DDA [15:0]
8
8
8
7
7
7
6
6
6
Description
Description
Description
5
5
5
4
4
4
Fast Ethernet RISC Processor
3
3
3
DDA [19:16]
DSA [19:16]
2
2
2
1
1
1
R1610C
0
0
0
57