CONTROLINK86 SMSC, CONTROLINK86 Datasheet - Page 39

• Manufacturer Part Number: CONTROLINK86
• Description: Development Software Embedded Networking Software
• Manufacturer: SMSC

Specifications of CONTROLINK86

• Tool Function: Compiler
• Tool Type: Compiler
• Processor Series: 80x86
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

ControLink86 Realtime Networking Software
Parameter
D20_CMD_CHAIN
D20_NET_TIMEOUT
D20_BACKPLANE
D20_NODE_ID
D20_P1MODE
D20_FOUR_NAKS
Default
0x00
0x18
0x00
0xFF
0x00
0x00
Description
COM2002x can receive and transmit messages
one by one or in the command chaining mode,
when two Packet RAM pages are scheduled for
receive or transmit at a time.
0x00 - normal mode (one by one)
0x40 - command chaining
Note: this parameter is OR-ed into the
Configuration Register
This parameter holds the bit settings for the ET1
and ET2 bits that reside in the Config Register of
the COM2002x. For the explanation how the
settings of these bits affects the MAC layer of the
network see Section 7 that explains Network
Speed.
Valid values: 0x00, 0x08, 0x10, 0x18
Note: this parameter is OR-ed into the
Configuration Register
The COM2002x supports a backplane mode in
which the device can directly drive the physical
layer or be used with RS-485 type transceivers.
The signaling in the Backplane mode is different
from the standard Dipulse mode.
0x00 = standard, Dipulse mode
0x04 = Backplane mode
Note: this parameter is OR-ed into the
Configuration Register
The node ID is the resulting node address on the
network for this node. The node mode parameter
determines the method for getting the node
address. See the node mode parameter for more
details.
Valid node addresses are 0x01 to 0xFF.
Specifies whether the driver for the COM2002x
nPULSE1 pin is configured for the Push-Pull
mode or the Open Drain mode. Refer to the
COM2002x ULANC for further detail.
0x00 = Open Drain
0x80 = Push Pull
Note: this parameter is OR-ed into the Setup
Register
This flag modifies the FOUR_NAKS bit in the
COM2002x retry register that controls whether 4
NAKS or 128 NAKS to a transmitted point-to-point
message will result in the EXCNAK interrupt.
0x00 = EXCNAK interrupt after 128 NAKS
0x40 = EXCNAK interrupt after 4 NAKS
Note: this parameter is OR-ed into the Setup
Register
39