MC68306 Motorola, MC68306 Datasheet - Page 24

• Manufacturer Part Number: MC68306
• Description: Integrated EC000 Processor
• Manufacturer: Motorola

NOTES:
2. Pullup or pulldown may be required, value depends on individual application.
2-4
Interrupt Request Level 7, 4, 1
Interrupt Request Level 6/Port B 7
Interrupt Request Level 5/Port B 6
Interrupt Request Level 3/Port B 5
Interrupt Request Level 2/Port B 4
Interrupt Acknowledge 7, 4, 1
Interrupt Acknowledge 6/Port B 7
Interrupt Acknowledge 5/Port B 6
Interrupt Acknowledge 3/Port B 5
Interrupt Acknowledge 2/Port B 4
Port A
Crystal Oscillator or External
Clock
Crystal Oscillator
System Clock
Address Mode
Signal Name
Signal Name
Table 2-4. Interrupt and Parallel Port Signal Summary
Table 2-5. Clock and Mode Control Signal Summary
IACK7, IACK4, IACK1
IRQ7, IRQ4, IRQ1
IACK6 /PB3
IACK5 /PB2
IACK3 /PB1
IACK2 /PB0
Mnemonic
Mnemonic
IRQ6/PB7
IRQ5/PB6
IRQ3/PB5
IRQ2/PB4
PA7–PA0
CLKOUT
MC68306 USER'S MANUAL
AMODE
EXTAL
XTAL
Output
Output
Output
Output
Output
Input/
Input/
Input
Input
Input
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
Three-State During
Three-State During
Bus Arbitration
Bus Arbitration
No
—
—
—
—
—
—
—
—
—
—
—
—
—
—
Pullup Required
Pullup Required
MOTOROLA
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)