cp2200 Silicon Laboratories, cp2200 Datasheet - Page 60

• Manufacturer Part Number: cp2200
• Description: Single-chip Ethernet Controller
• Manufacturer: Silicon Laboratories

CP2200/1
12.5. Receive Status and Control Registers
The CP2200/1 receive interface is controlled and managed through the registers in Table 16. The current packet
registers provide information about the next packet to be unloaded from the receive buffer (the oldest packet
received).
60
Register
RXCN
RXSTA
RXAUTORD Receive AutoRead
RXFILT
RXHASHH
RXHASHL
CPINFOH
CPINFOL
CPLENH
CPLENL
CPADDRH
CPADDRL
Receive Interface Control
Receive Interface Status
Receive Filter Configuration
Multicast Hash Table
Current Packet Information
Current Packet Length
Current Packet Address
Long Name
Table 16. Receive Status and Control Register Summary
Address
0x0E
0x1D
0x1E
0x12
0x01
0x10
0x0F
0x1F
0x20
0x21
0x22
0x11
Rev. 1.0
RXCLRV, RXRST, and RXINH.
Indicates when the receive interface is busy receiving a
frame and when the current packet has been completely
read from the buffer.
Provides an efficient method of reading entire packets
sequentially from the receive buffer.
Specifies the type of packets can pass through the
receive filter.
16-bit Hash Table used to filter multicast packets.
Specifies information about the current packet such as
broadcast/multicast, CRC errors, etc.
Specifies the length of the current packet in the receive
buffer (in bytes).
Specifies the starting address of the current packet in
the receive buffer.
Contains receive interface control bits such as RXSKIP,
Description