參數(shù)資料
型號(hào): MC56F8123
廠商: Motorola, Inc.
英文描述: 16-bit Hybrid Controllers
中文描述: 16位混合控制器
文件頁數(shù): 115/140頁
文件大?。?/td> 1981K
代理商: MC56F8123
56F8323 Technical Data, Rev. 11.0
76
Freescale Semiconductor
Preliminary
5.6.14.1
Reserved—Bits 15–5
This bit field is reserved or not implemented. It is read as 0 and cannot be modified by writing.
5.6.14.2
Fast Interrupt 0 Vector Address High (FIVAH0)—Bits 4–0
The upper five bits of the vector address used for Fast Interrupt 0. This register is combined with FIVAL0
to form the 21-bit vector address for Fast Interrupt 0 defined in the FIM0 register.
5.6.15
Fast Interrupt 1 Match Register (FIM1)
Figure 5-17 Fast Interrupt 1 Match Register (FIM1)
5.6.15.1
Reserved—Bits 15–7
This bit field is reserved or not implemented. It is read as 0, but cannot be modified by writing.
5.6.15.2
Fast Interrupt 1 Vector Number (FAST INTERRUPT 1)—Bits 6–0
This value determines which IRQ will be a Fast Interrupt 1. Fast interrupts vector directly to a service
routine based on values in the Fast Interrupt Vector Address registers without having to go to a jump table
first; for details, see Part 5.3.3. IRQs used as fast interrupts must be set to priority level 2. Unexpected
results will occur if a fast interrupt vector is set to any other priority. Fast interrupts automatically become
the highest-priority level 2 interrupt, regardless of their location in the interrupt table, prior to being
declared as fast interrupt. Fast Interrupt 0 has priority over Fast Interrupt 1. To determine the vector
number of each IRQ, refer to Table 4-3.
5.6.16
Fast Interrupt 1 Vector Address Low Register (FIVAL1)
Figure 5-18 Fast Interrupt 1 Vector Address Low Register (FIVAL1)
5.6.16.1
Fast Interrupt 1 Vector Address Low (FIVAL1)—Bits 15–0
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.
Base + $E
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
0
Read
0
FAST INTERRUPT 1
Write
RESET
00000000
Base + $F
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
0
Read
FAST INTERRUPT 1
VECTOR ADDRESS LOW
Write
RESET
00000000
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MC56F8323 16-bit Hybrid Controllers
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