MOTOROLA M68000 8-/16-/32-BIT MICROPROCESSORS USER'S MANUAL 3- 9
Table 3-3. Function Code Outputs
Function Code Output
FC2 FC1 FC0 Address Space Type
Low Low Low (Undefined, Reserved)
Low Low High User Data
Low High Low User Program
Low High High (Undefined, Reserved)
High Low Low (Undefined, Reserved)
High Low High Supervisor Data
High High Low Supervisor Program
High High High CPU Space
3.9 CLOCK (CLK)
The clock input is a TTL-compatible signal that is internally buffered for development of
the internal clocks needed by the processor. This clock signal is a constant frequency
square wave that requires no stretching or shaping. The clock input should not be gated
off at any time, and the clock signal must conform to minimum and maximum pulse-width
times listed in Section 10 Electrical Characteristics.
3.10 POWER SUPPLY (V
CC
and GND)
Power is supplied to the processor using these connections. The positive output of the
power supply is connected to the V
CC
pins and ground is connected to the GND pins.
Frees
cale Semiconductor,
I
Freescale Semiconductor, Inc.
For More Information On This Product,
Go to: www.freescale.com
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