R1610C RDC Semiconductor, R1610C Datasheet - Page 100

• 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
20.
1. DRST
The RX circuit will stop receiving packet if Owner Bit=0.
DRST [14:0]: RX Status. The MAC will update the RX status field after frame receiving is complete.
R
20.1
100
15
Bit
O
15
14
15
D
Fast Ethernet Controller
D
RXOK
14
S
B
I
C
RX Descriptor Format
C
RXOK
Name
O
13
®
®
Reserved
R
R
I
I
S
S
C
C
DRST
DRLEN
DRBP
DRNX
Reserve1
Reserve2
Reserve3
D
D
12
S
S
Owner Bit.
Set1: MAC.
Set0: CPU.
RX successful. This bit indicates that the packet was received successfully without error. It
includes:
P
P
C
C
o
o
m
m
m
m
ERR
PHY
u
u
11
n
n
i
i
c
c
a
a
t
t
i
i
RX FIFO
o
TX FIFO
o
n
n
BBLE
DRI
10
SBI : System Bus Interface
MAC Block Diagram
OBL
9
DRBP [19:16]
3
HIDX[5:0]
DRNX [19:16]
LONG RUNT
8
2
1
0 0
0 0
7
0
CRC
ERR
6
Block
Block
Description
RX
TX
BROAD
CAST
5
MULTI
CAST
4
Fast Ethernet RISC Processor
MCH
Loop_back
3
MAC
MIDH
2
1
MID
R1610C
October 27, 2003
0
Final Version 1.5
M
I
I
Data Sheet