mc56f801 Freescale Semiconductor, Inc, mc56f801 Datasheet - Page 58
mc56f801
Manufacturer Part Number
mc56f801
Description
16-bit Digital Signal Controllers
Manufacturer
Freescale Semiconductor, Inc
Datasheet
1.MC56F801.pdf
(125 pages)
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5.6.11
5.6.11.1
The lower 16 bits of the vector address used for Fast Interrupt 1. This register is combined with FIVAH1
to form the 21-bit vector address for Fast Interrupt 1 defined in the FIM1 register.
5.6.12
5.6.12.1
This bit field is reserved or not implemented. It is read as 0 and cannot be modified by writing.
5.6.12.2
The upper five bits of the vector address are used for Fast Interrupt 1. This register is combined with
FIVAL1 to form the 21-bit vector address for Fast Interrupt 1 defined in the FIM1 register.
5.6.13
5.6.13.1
This register combines with IRQP1 and IRQP2 to represent the pending IRQs for interrupt vector numbers
2 through 45.
5.6.13.2
This bit is reserved or not implemented. It is read as 1 and cannot be modified by writing.
58
•
•
Base + $A
Base + $B
Base + $C
0 = IRQ pending for this vector number
1 = No IRQ pending for this vector number
RESET
RESET
RESET
Write
Write
Write
Read
Read
Read
Fast Interrupt 1 Vector Address Low Register (FIVAL1)
Fast Interrupt 1 Vector Address High Register (FIVAH1)
IRQ Pending Register 0 (IRQP0)
Fast Interrupt 1 Vector Address Low (FIVAL1)—Bits 15–0
Figure 5-14 Fast Interrupt 1 Vector Address High Register (FIVAH1)
Reserved—Bits 15–5
Fast Interrupt 1 Vector Address High (FIVAH1)—Bits 4–0
IRQ Pending (PENDING)—Bits 15–1
Reserved—Bit 0
Figure 5-13 Fast Interrupt 1 Vector Address Low Register (FIVAL1)
15
15
15
0
0
0
1
14
14
14
0
0
0
1
Figure 5-15 IRQ Pending Register 0 (IRQP0)
13
13
13
0
0
0
1
12
12
12
0
0
0
1
56F8014 Technical Data, Rev. 9
11
11
11
0
0
0
1
FAST INTERRUPT 1 VECTOR ADDRESS LOW
10
10
10
0
0
0
1
9
0
9
0
0
9
1
PENDING[16:2]
8
0
8
0
0
8
1
7
7
7
0
0
0
1
6
6
6
0
0
0
1
5
0
5
0
0
5
1
4
4
4
0
0
1
FAST INTERRUPT 1 VECTOR
3
3
3
0
0
1
ADDRESS HIGH
Freescale Semiconductor
2
0
2
0
2
1
1
0
1
0
1
1
Preliminary
0
0
0
0
0
1
1