參數(shù)資料
型號(hào): CTMRM
英文描述: Configurable Timer Module Reference Manual
中文描述: 配置定時(shí)器模塊參考手冊(cè)
文件頁數(shù): 39/164頁
文件大?。?/td> 1148K
代理商: CTMRM
CTM
REFERENCE
MOTOROLA
3-3
INTERRUPTS
3
3.4
Interrupt vector number and vector address
If the CTM wins an arbitration sequence, it generates a uniquely coded 8-bit interrupt vector
number that indicates which timer submodule is requesting service. The two highest order bits
(VECT[7:6]) of the interrupt vector number come from the BIUMCR and establish the vector base
number of the CTM at $00, $40, $80 or $C0. The remaining bits of the interrupt vector number
(VECT[5:0]) are hardwired into each CTM submodule and are unique for each interrupt source.
The vector address is obtained by multiplying the vector base number by two. (See Table 3-1.)
Note:
Some CTM submodules, e.g. the SASM, have more than one interrupt source and
therefore have a corresponding number of vectors and uniquely coded vector base
numbers.
(1) VBN = $00, $3F, $7F or $BF depending on the state of the
VECT[7:6] bits in the BIUSM.
Table 3-1
CTM submodule and interrupt vector number convention
Submodule
number
0
1
2
3
4
61
62
63
Interrupt vector number
(1)
(VBN + vect[5:0])
VBN
VBN + 1
VBN + 2
VBN + 3
VBN + 4
VBN + $3D
VBN + $3E
VBN + $3F
Daisy-chain
priority
Highest
Lowest
F
.
Freescale Semiconductor, Inc.
For More Information On This Product,
Go to: www.freescale.com
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