參數(shù)資料
型號: MB90W224AZF
元件分類: 微控制器/微處理器
英文描述: 16-BIT, UVPROM, 16 MHz, MICROCONTROLLER, CQFP120
封裝: CERAMIC, QFP-120
文件頁數(shù): 48/105頁
文件大?。?/td> 1700K
代理商: MB90W224AZF
47
MB90220 Series
7. DTP/External Interrupts
DTP (Data Transfer Peripheral) is located between external peripherals and the F2MC-16F CPU. It receives a
DMA request or an interrupt request generated by the external peripherals and reports it to the F2MC-16F CPU
to activate the extended intelligent I/O service or interrupt handler. The user can select two request levels of “H”
and “L” for extended intelligent I/O service or, and four request levels of “H,” “L,” rising edge and falling edge for
external interrupt requests. In MB90220, only parts corresponding to INT2 to INT0 are usable as external
interrupt/DTP request.
Parts corresponding to INT7 to INT3 cannot be used as external interrupt/DTP request, but only for edge
detection at external terminals.
Note: INT7 to INT3 are not usable as DTP/external interrupts.
(1) Register Configuration
(2) Block Diagram
bit15
bit14
bit13
bit12
bit11
bit10
bit9
ER7
ER6
ER5
ER4
ER3
ER2
ER1
ER0
bit8
00003A H
bit7
bit6
bit5
bit4
bit3
bit2
bit1
EN7
EN6
EN5
EN4
EN3
EN2
EN1
EN0
bit0
00003B H
LB7
LA7
LB6
LA6
LB5
LA5
LB4
LA4
00003D H
00003C H
LB3
LA3
LB2
LA2
LB1
LA1
LB0
LA0
ENIR
00000000B
EIRR
bit15
bit14
bit13
bit12
bit11
bit10
bit9
bit8
00000000B
ELVR
bit7
bit6
bit5
bit4
bit3
bit2
bit1
bit0
00000000B
Register name Address
Initial value
(R/W)
DTP/Interrupt Enable Register (ENIR)
Request Level Setting Register (ELVR)
DTP/Interrupt Source Register (EIRR)
Interrupt/DTP enable register
4
Gate
4
Source F/F
Edge detector
8
Interrupt/DTP source register
4
Request level setting register
8
INT
Internal
data
bus
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