MC68HC901 Datasheet, PDF (32/73 Pages) Motorola, Inc – Multi-Function Peripheral

Interrupt Structure
Timer B — Timer B Interrupt Mask
1 = Unmask.
0 = Mask.
IMRB REGISTER
BIT
7
FIELD
GPIP5
RESET
0
ADDR
6
GPIP4
0
5
TIMER C
0
4
3
TIMER D GPIP3
0
0
$15
GPIP5-GPIP4 — General Purpose Interrupt Mask
1 = Unmask.
0 = Mask.
Timer C — Timer C Interrupt Mask
1 = Unmask.
0 = Mask.
Timer D — Timer D Interrupt Mask
1 = Unmask.
0 = Mask.
GPIP3-GPIP0 — General Purpose Interrupt Mask
1 = Unmask.
0 = Mask.
2
GPIP2
0
1
GPIP1
0
0
GPIP0
0
EDGE
REGISTER
ENABLE
REGISTER
MASK REGISTER
S-BIT
INTERRUPT _Q
S PENDING
S ^INTERRUPT
IN-SERVICE
17
R
INTERRUPT
REQUEST
PASS VECTOR
Figure 4-2. Conceptual Circuits of an Interrupt Channel
FIGURE - CONCEPTUAL CIRCUITS OF AN INTERRUPT CHANNEL
MC68HC901UM / AD
4-9
MC68HC901 USER’S MANUAL
MOTOROLA