MC68HC901P MOTOROLA [Motorola, Inc], MC68HC901P Datasheet - Page 62

• Manufacturer Part Number: MC68HC901P
• Description: Multi-Function Peripheral
• Manufacturer: MOTOROLA [Motorola, Inc]

Electrical Characteristics
8-9
D0 - D7
DTACK
NOTE:
IACK
CLK
IEO
DS
IEI
IEO only goes low if no acknowledgeable interrupt is pending. If IEO goes low, DTACK and
the data bus remain in the high-impendance state.
Figure 8-5. Interrupt Acknowledge Cycle (IEI Low)
4
FIGURE - INTERRUPT ACKNOWLEDGE CYCLE (IEI Low) TIMING
MC68HC901 USER’S MANUAL
16
14
MC68HC901UM / AD
(SEE NOTE)
15
18
13
17
26
9
7
6
MOTOROLA