CS8900A-IQ3ZR Cirrus Logic Inc, CS8900A-IQ3ZR Datasheet - Page 56

• Manufacturer Part Number: CS8900A-IQ3ZR
• Description: Ethernet ICs IC 10Mbps Ethernet Controller 3.3V
• Manufacturer: Cirrus Logic Inc

Specifications of CS8900A-IQ3ZR

• Ethernet Connection Type: 10Base- 2, 10Base- 5, 10Base- F, 10Base- T
• Minimum Operating Temperature: - 40 C
• Mounting Style: SMD/SMT
• Product: Ethernet Controllers
• Standard Supported: IEEE 802.3
• Data Rate: 10 Mbps
• Maximum Operating Temperature: + 85 C
• Package / Case: LQFP-100
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

4.4.8 Register 5: Receiver Control
(RxCTL, Read/Write, Address: PacketPage base +0104h)
RxCTL has two functions: Bits 8, C, D, and E define what types of frames to accept. Bits 6, 7, 9, A, and B configure
the Destination Address filter. See Section 5.2.10 on page 87.
000101
IAHashA
PromiscuousA
RxOKA
MulticastA
IndividualA
BroadcastA
CRCerrorA
RuntA
ExtradataA
After reset, if no EEPROM is found by the CS8900A, then the register has the following initial state. If an EEPROM
is found, then the register's initial value may be set by the EEPROM. See Section 5.2.10 on page 87.
Reset value is: 0000 0000 0000 0101
Notes: 5. Typically, when bits CRCerrorA, RuntA and ExtradataA are cleared (meaning bad frames are being
PromiscuousA
56
7
F
discarded), then the corresponding bits CRCerroriE, RuntiE and ExtradataiE should be set in register 3
(Receiver Configuration register) to allow the device driver to keep track of discarded frames.
ExtradataA
IAHashA
Control Register. For a received frame to be accepted, the Destination Address of that frame
must pass the filter criteria found in Bits 6, 7, 9, A, and B (see Section 5.2.10 on page 87).
that passes the hash filter.
bytes <= length <= 1518 bytes).
passes the hash filter.
dress found at PacketPage base + 0158h to PacketPage base + 015Dh.
cepted. When clear, frames with bad CRC are discarded. See Note 5.
filter are accepted. When clear, received frames less that 64 bytes in length are discarded. The
CS8900A discards any frame that is less than 8 bytes. See Note 5.
are accepted. The CS8900A accepts only the first 1518 bytes and ignores the rest. When clear,
frames longer than 1518 bytes are discarded. See Note 5.
These bits provide an internal address used by the CS8900A to identify this as the Receiver
When set, receive frames are accepted when the Destination Address is an Individual Address
Frames with any address are accepted when this bit is set.
When set, the CS8900A accepts frames with correct CRC and valid length (valid length is: 64
When set, receive frames are accepted if the Destination Address is an Multicast Address that
When set, receive frames are accepted if the Destination Address matches the Individual Ad-
When set, receive frames are accepted if the Destination Address is FFFF FFFF FFFFh.
When set, receive frames that pass the Destination Address filter, but have a bad CRC, are ac-
When set, receive frames that are smaller than 64 bytes, and that pass the Destination Address
When set, receive frames longer than 1518 bytes and that pass the Destination Address filter
E
6
RuntA
D
5
CIRRUS LOGIC PRODUCT DATASHEET
CRCerrorA
C
4
BroadcastA
B
3
000101
IndividualA
Crystal LAN™ Ethernet Controller
A
2
MulticastA
1
9
CS8900A
RxOKA
DS271F5
0
8