MC68HC11F1 Datasheet, PDF (37/68 Pages) Motorola, Inc – Technical Summary 8-Bit Microcontroller

CWOM — Port C Wired-OR Mode Option
This bit affects all port C pins together.
0 = Port C outputs are normal CMOS outputs
1 = Port C outputs act as open-drain outputs
CLK4X — 4XCLK Output Enable
Refer to 4.3 System Initialization Registers, page 23
LIRDV — Load Instruction Register Driven
Refer to 4.3 System Initialization Registers, page 23
Bits 3, 1, 0 — Not implemented. Reads always return zero and writes have no effect.
SPRBYP — Refer to 10.2 SPI Registers, page 52.
MC68HC11F1/FC0
MC68HC11FTS/D
MOTOROLA
37