參數(shù)資料
型號(hào)： MB90M407PF
元件分類： 微控制器/微處理器
英文描述： MICROCONTROLLER, PQFP100
封裝： 14 X 20 MM, 3.35 MM HEIGHT, 0.65 MM PITCH, PLASTIC, QFP-100
文件頁數(shù)： 30/68頁
文件大?。?/td> 1486K
代理商： MB90M407PF
MB90M405 Series
36
DS07-13718-3E
8.
DTP/External Interrupt Circuit
The DTP (Data Transfer Peripheral) /external interrupt circuit detects interrupt requests input from the external
interrupt input pin, and outputs interrupt requests.
DTP/External Interrupt Function
The DTP/external interrupt circuit outputs interrupt requests upon detection of an edge input from the external
interrupt input pin, or a level signal. Interrupt requests are accepted by the CPU, and if extended intelligent I/O
service (EI2OS) is enabled, the CPU conducts automated data transfer (DTP function) via EI2OS, then branches
into an interrupt processing routine. If EI2OS is disabled, the CPU branches into an interrupt processing routine,
without starting automated data transfer (DTP function) via EI2OS.
ICR : Interrupt Control Register
DTP/External Interrupt Circuit Interrupts and EI2OS
External Interrupt Function
DTP Function
Input pins
4 channels (P80/INT0, P81/INT1, PB6/INT2, PB7/INT3)
Interrupt conditions
The level or edge to detect can be set independently for each pin in the detection level
setup register (ELVR)
“L” level/“H” level input
Rising edge/falling edge input
Interrupt number
#11 (0BH), #13 (0DH) , #16(10H)
Interrupt control
Enable/disable interrupt request output in the DTP/external interrupt enable register
(ENIR)
Interrupt flag
The DTP/interrupt factor register (EIRR) stores interrupt conditions.
Processing selection
Set EI2OS to disabled
(ICR : ISE
= “0”)
Set EI2OS to enabled
(ICR : ISE
= “1”)
Operation
Branch to interrupt processing routine
Branch to interrupt processing routine after
automatic data transfer by EI2OS completes.
Channel
Interrupt No.
Interrupt Control Register
Vector Table Address
EI2OS
Register Name
Address
Lower
Upper
Bank
INT0
#11 (0BH)
ICR00
0000B0H
FFFFD0H
FFFFD1H
FFFFD2H
INT1
#13 (0DH)
ICR01
0000B1H
FFFFC8H
FFFFC9H
FFFFCAH
INT2
#16 (10H)
ICR02
0000B2H
FFFFBCH
FFFFBDH
FFFFBEH
INT3
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