R1610C RDC Semiconductor, R1610C Datasheet - Page 112

• 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
PS. The MAC last time status. It is updated by next packet coming.
R
20.10
20.11
RXFOR LATEC
15-8
112
Register Offset:
Register Name:
Reset Value
Register Offset:
Register Name:
Reset Value
7-0
15
Bit
15
Bit
15
14
13
12
D
D
RXDESPAN
14
14
RXPT [7:0]
EXCEEDC
C
MRDCR: RX Descriptor Control Register (1Ah)
MLSR: MAC Last Status Register(1Ch)
C
RXFOR
Name
LATEC
Name
[7:0]
Rsvd
EXCEED
13
13
®
®
C
:
:
R
R
I
I
S
S
C
C
Rsvd
1Ah
MRDCR: RX Descriptor Control Register
0000h
1Ch
MLSR: MAC Last Status Register
0000
D
D
RXPT [7:0]
12
12
S
S
Attribute
P
P
Attribute
C
C
o
o
R/W
R/W
m
m
PHYSTS
RO
RO
RO
RO
m
m
u
u
11
11
n
n
i
i
c
c
a
a
t
t
i
i
o
o
n
n
RXDESP
RX Descriptor Threshold value.
MAC controller will send TX Pause Frame when available RX Descriptor
reaches this threshold value.
RX Descriptor Available Number for flow-control.
When MAC finishes one descriptor data transfer into RX buffer, the RX
descriptor available number will decrease 1 automatically.
Use “IN” instruction to read this register and “OUT” instruction to increase the
register value.
When RCVEN=0, use “OUT” instruction to setup RX descriptor available
number.
When RCVEN=1, use “OUT” instruction to increase RX descriptor available
number.
This register must be initialized before RCVEN = 1.
RX FIFO Over-Run
Transmit Late Collision.
Transmit Exceed Collision.
Reserved
10
10
UA
TXFUR
9
9
Rsvd
8
8
PHYEER DRIBBLE
7
7
6
6
OBL
Description
Description
5
5
RXDESPAN [7:0]
LONG
4
4
Fast Ethernet RISC Processor
RUNT
3
3
CRCERR
2
2
BROAD
CAST
1
1
R1610C
MULTI
CAST
October 27, 2003
0
0
Final Version 1.5
Data Sheet