參數(shù)資料
型號: MB91340PMT
元件分類: 微控制器/微處理器
英文描述: 32-BIT, MROM, 66 MHz, RISC MICROCONTROLLER, PQFP176
封裝: PLASTIC, LQFP-176
文件頁數(shù): 82/126頁
文件大小: 1501K
代理商: MB91340PMT
MB91340/MB91V340
59
3.
Interrupt Controller
The interrupt controller receives and processes interrupts.
Hardware Configuration
The interrupt controller consists of the following :
ICR register
Interrupt priority determination circuit
Interrupt level and interrupt number (vector) generator
Hold request removal request generator
Principal Functions
The main functions of the interrupt controller are as follows :
Detect NMI and interrupt requests
Prioritize interrupts (according to level and number)
Notify interrupt level of selected interrupt request (to CPU)
Notify interrupt number of selected interrupt request (to CPU)
If an NMI or interrupt request with an interrupt level other than "11111B" occurs, notify recovery from stop mode
(to CPU)
Generate hold request removal requests to the bus master
Block Diagram
RI00
RI47
(DLYIRQ)
5
6
LEVEL4
0
MHALTI
VCT5
0
R-BUS
UNMI
WAKEUP
ICR00
ICR47
(“1” when LEVEL
11111B)
Determine order of priority
NMI
processing
LEVEL
determination
VECTOR
determination
LEVEL,
VECTOR
genera-
tion
HLDREQ
removal
request
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