MCBXC167 User's GuideIntroduction Setup Board Setup Board Components Connecting the MCBXC167 Configuring the MCBXC167 DIP Switches Jumper Descriptions Theory of Operation Writing Programs Example Programs Infineon Memtool Utility Startup Code
A DIP switch is ON when it is positioned toward the center of the MCBXC167 board. A DIP switch is OFF when it is positioned toward the COM1 port.
The DIP switch settings used to configure the MCBXC167 board are:
Default DIP Switch Setting
The following describes each of the configuration switches.
BSL (Switch 1): Bootstrap Loader for Off-chip Memory (Default OFF)
When the EA switch 10 is ON, switch 1 enables the Bootstrap Loader of the XC167 devices:
CSSEL (Switches 2 and 3): Number of Chip Select Lines (Default: ON ON)
The CSSEL DIP switches define the number of active chip select signals.
The CS/ signals generate on Port 6 and perform as chip select lines for the RAM, Flash ROM and Ethernet devices on the MCBXC167 board.
SALSEL (Switches 4 and 5): Number of Segment Address Lines (Default: ON ON)
The SALSEL DIP switches define the number of active segment address lines on Port 4.
If you use the CAN interface, only A19 - A16 may be enabled since the other Port 4 pins are used for CAN I/O. Even if some segment address lines are disabled, the XC167 uses a complete 24-bit address internally. The full address space can still be used via the CS/ (chip select) signals.
CLKCFG (Switches 6, 7, and 8): Clock Configuration (Default: ON OFF ON)
The CLKCFG DIP switches configure the internal CPU clock.
The XC167 device uses an on-chip PLL that generates the internal CPU clock from the external 8MHz XTAL. The following table shows the possible internal CPU clock speeds for a standard 10MHz crystal. Check the datasheet for the device you use to determine the maximum possible internal CPU clock speed.
BSO (Switch 9): Bootstrap Loader for On-chip Flash ROM (Default: OFF)
When the EA switch is OFF this switch enables the Bootstrap loader of the XC167 devices:
EA (Switch 10): External Access of Program Code (Default: OFF)
The EA configuration switch enables External Access of program code:
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