mx98713 Macronix International Co., mx98713 Datasheet - Page 23

• Manufacturer Part Number: mx98713
• Description: 100/10base Pci Mac Controller
• Manufacturer: Macronix International Co.

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Field Name
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24
23
22
21
19
18
17
15:14 TR
5.2.6. OPERATION MODE REGISTER ( CSR6 )
SCR
PCS
TTM
SF
HBD
PS
COE
HP- Hash/Perfect Receive Filtering Mode
TTM- Transmit Threshold Mode
SF- Store and Forward
HBD- Heartbeat Disable
PS- Port Select
COE- Collision Offset Enable
TR- Threshold Control Bits
ST- Start/Stop Transmission Command
FC- Force collision mode
LOM- Loopback Operation Mode
FD- Full Duplex Mode
PM- Pass All Multicast
PR- Promiscuous Mode
SB- Start/Stop Backoff Counter
IF- Inverse Filtering
PB- Pass Bad Frame
HO- Hash-Only Filtering Mode
SR- Start/Stop Receive
SCR- Scrambler Mode
PCS- PCS function
Description
Scrambler Mode, set to enable scrambler function and the MII/SYM port transmit and receive
scrambled symbols.
Set to enable PCS functions and the MII/SYM port operates in symbol mode. CSR6<18>
must be set in order to operate in MII/ SYM port.
Transmit Threshold Mode, set for 10Mbps and reset for 100Mbps.
Store and Forward, when set, transmission starts only if a full packet is in transmit FIFO; the
threshold values defined in CSR6<15:14> is ignored
Heartbeat Disable, set to disable SQE function in 10Mbps mode. This bit should be set in
MII/SYM port.
Port Select, set for MII/SYM port. A software reset does not affect this bit.
Collision Offset Enable, set to enable a modified backoff algorithm during low collision sit-
uation, reset for normal backoff algorithm.
Threshold Control Bits, these bits control the selected threshold level for PMAC's transmit
FIFO; transmission starts when frame size within the transmit FIFO is larger than the selected
threshold. Full frames with a length less than the threshold are also transmitted.
Value after reset is "E0000040"h
0 0 0 0
0
23
0
0
MX98713
INDEX