cp2200 Silicon Laboratories, cp2200 Datasheet - Page 64

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

CP2200/1
64
Bit 7:
Bit 6:
Bit 5:
Bit 4:
Bits 3–2: Reserved: Read = varies.
Bit 1:
Bit 0:
Bits 7–0: CPLENH: Current Packet Length High Byte
Bits 7–0: CPLENL: Current Packet Length Low Byte
RXOK
Bit7
Bit7
Bit7
—
R
R
R
RXOK: Receive OK
0: Receive not OK.
1: Receive OK.
LENGTH: Length/Type Field Detection
0: The length/type field of the current packet contains the packet length.
1: The length/type field of the current packet contains the packet type.
LENERR: Length Check Error
0: No errors detected in length field.
1: The length field does not match actual packet length.
CRCERR: CRC Error
0: CRC check passed.
1: CRC check failed.
RXLEN: Receive Length
0: Normal Operation.
1: The data received is not long enough to form a valid packet.
RXDROP: Packet Dropped
0: Normal operation.
1: A packet has been dropped.
High byte of the current packet length.
Low byte of the current packet length.
LENGTH LENERR CRCERR Reserved Reserved
Bit6
Bit6
Bit6
—
Register 41. CPINFOL: Current Packet Information Low Byte
R
R
R
Register 42. CPLENH: Current Packet Length High Byte
Register 43. CPLENL: Current Packet Length Low Byte
Bit5
Bit5
Bit5
—
R
R
R
Bit4
Bit4
Bit4
—
R
R
R
Bit3
Bit3
Bit3
—
R
R
R
Rev. 1.0
Bit2
Bit2
Bit2
—
R
R
R
RXLEN
Bit1
Bit1
Bit1
—
R
R
R
RXDROP 00000000
Bit0
Bit0
Bit0
—
R
R
R
00000000
00000000
Reset Value
Reset Value
Reset Value
Address:
Address:
Address:
0x1E
0x1F
0x20