Instruction manual

1-10 / Introduction ControlWaveLP
CPU Bd. Jumper JP4C - ULP SMIACT (see Table 1-5)
Table 1-5 - Jumper JP4C - ULP SMIACT Jumper
JP4C Open Installed
ULP SMIACT
Jumper
The SMIACT output from the 80486-ULP
is isolated from the $CPU.
~SMIACT signal, allowing the DX4 socket
to drive SMIACT.
ULP drives the $CPU.~SMIACT
signal. Do not populate the DX4
socket.
1.3.1.3 CPU Board Switches
The CPU Board contains three 8-bit DIP switches; SW1 is used to configure Comm. Port 3,
SW4 for is provided for user configuration of the unit and SW5 is undefined. A 4-bit DIP
switch (SW2) accommodates FLASH write protection and recovery mode. A single momen-
tary switch (SW3) is provided for resetting the unit.
CPU Bd. Configuration Switch SW1 (COM3 - RS-232/RS-485)
(see Table 1-6)
The RS-232/RS-485 configuration for Communication port 3 (COM3) is implemented via 8-
bit DIP switch SW1.
Table 1-6 - COM3 Port Configuration Switch SW1 Settings
SWITCH Function Setting
SW1-1 Not used N/A
SW1-2 RS-232/RS-485 Select ON = RS-232, OFF = RS-485
SW1-3 TXD to RXD Loop-back
ON = Loop-back enabled
OFF = Loop-back disabled
SW1-4 TXD to RXD Loop-back
ON = Loop-back enabled
OFF = Loop-back disabled
SW1-5 RS-485 Termination ON = Term., OFF = No Term.
SW1-6 RS-485 Termination ON = Term., OFF = No Term.
SW1-7 /RTS to /CTS Loop-back
ON = Loop-back enabled
OFF = Loop-back disabled
SW1-8 /RTS to /CTS Loop-back
ON = Loop-back enabled
OFF = Loop-back disabled
CPU Bd. Switch SW2 - Soft Switch, FLASH Write & Force Recovery
(see Table 1-7)
Switch SW2 provides soft switch control, write protection for all of the non-boot-block areas
of the FLASH Boot Device (FDB) and Recover Mode enabling/disabling.
Switch SW2-C provides for forced update/recovery of the BIOS if SW2-C has been set to the
ON position when a reset occurs. The boot-up code passes control to the built-in Recovery
Command Processor that communicates with the user via the recovery serial connection
and a terminal program running on an external host computer.
Table 1-7 - Switch SW2 - FBD Write Protect & Recovery Mode Settings
SWITCH Function Setting
SW2-C Recovery Mode Control
ON = Force recovery mode (via CW Console)
OFF = Recovery mode disabled
SW2-D FLASH Download Control
ON = FLASH Download enabled
OFF = FLASH Download disabled
Note: SW2A & SW2B are not used.