So I have a project that uses a 68HC11F1, and I am not sure I have it set up correctly.
Memory map (addresses not listed are not used):
0x0080-0x01FF Internal RAM (allocated for firmware use)
0x03D0-0x03FF Internal RAM (processor stack)
0x1000-0x105F HC11 register space (to be configured)
0x2000-0x200F I/O space 1
0x4000-0x400F I/O space 2
0xE000-0xFFBF Firmware ROM (external, 2764)
0xFFC0-0xFFFF Vectors (only XIRQ and Reset are required)
Hardware configuration: Expanded mode (MODA, MODB pulled to +5V)
Port A, Port D, Port E, Port G: Not used
Port B: Address A8-A15
Port C: Data D0-D7
Port F: Address A0-A7
XTAL driven by external 1MHz
EXTAL pulled down w/ 10K resistor
E not connected
4XOUT: Not connected
IRQ: Pulled high
XIRQ: Driven by external signal
Vrh, Vrl: Pulled down w/ 10K resistor
R/W: Connected to other ICs as expected
Reset: Connected to other ICs as expected
So, my question: Which registers in the group 0x1000-0x105F do I need to pay attention to?
