參數(shù)資料
型號： MB90574CPMT
廠商： FUJITSU LTD
元件分類： 微控制器/微處理器
英文描述： 16-bit Proprietary Microcontroller
中文描述： 16-BIT, MROM, 16 MHz, MICROCONTROLLER, PQFP120
封裝： 16 X 16 MM, 1.70 MM HEIGHT, 0.50 MM PITCH, PLASTIC, LQFP-120
文件頁數(shù)： 62/135頁
文件大?。?/td> 2504K
代理商： MB90574CPMT
62
MB90570 Series
10. DTP/External Interrupt Circuit
DTP (Data Transfer Peripheral), which is located between the peripheral circuit outside the device and the
F
2
MC-16LX CPU, receives an interrupt request or DMA request generated by the external peripheral circuit*
for transmission to the F
2
MC-16LX CPU. DTP is used to activate the intelligent I/O service or interrupt processing.
As request levels for IRQ2 to IRQ7, two types of “H” and “L” can be selected for the intelligent I/O service. Rising
and falling edges as well as “H” and “L” can be selected for an external interrupt request. For IRQ0 and IRQ1,
a request by a level cannot be entered, but both edges can be entered.
* :The external peripheral circuit is connected outside the MB90570/A series device.
Note: IRQ0 and IRQ1 cannot be used for the intelligent I/O service and return from an interrupt.
(1) Register Configuration
DTP/interrupt factor register (EIRR)
Address
000031
H
bit 7 . . . . . . . . . . . .
ER7
ER6
ER5
ER4
ER3
ER2
ER1
ER0
bit 15
bit 14
bit 13
bit 12
bit 11
bit 10
bit 9
bit 8
(ENIR)
Initial value
XXXXXXXX
B
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
Address
000030
H
bit 15 . . . . . . . . . . . .
EN7
EN6
EN5
EN4
EN3
EN2
EN1
EN0
(EIRR)
bit 7
bit 6
bit 5
bit 4
bit 3
bit 2
bit 1
bit 0
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
Initial value
00000000
B
Address
Low order address 000032
H
bit 15 . . . . . . . . . . . .
LB3
LA3
LB2
LA2
LB1
LA1
LB0
LA0
(ELVR upper)
bit 7
bit 6
bit 5
bit 4
bit 3
bit 2
bit 1
bit 0
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
Initial value
00000000
B
DTP/interrupt enable register (ENIR)
R/W: Readable and writable
X : Undefined
Address
High order address 000033
H
LB7
LA7
LB6
LA6
LB5
LA5
LB4
LA4
(ELVR lower)
Initial value
00000000
B
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
Request level setting register (ELVR)
bit 7 . . . . . . . . . . . .
bit 15
bit 14
bit 13
bit 12
bit 11
bit 10
bit 9
bit 8
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