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參數(shù)資料
| 型號： | S1C63455F |
| 元件分類： | 微控制器/微處理器 |
| 英文描述： | 4-BIT, MROM, 4.1 MHz, MICROCONTROLLER, PQFP128 |
| 封裝： | PLASTIC, QFP5-128 |
| 文件頁數(shù)： | 112/119頁 |
| 文件大?。?/td> | 865K |
| 代理商： | S1C63455F |
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84
EPSON
S1C63455 TECHNICAL MANUAL
CHAPTER 4: PERIPHERAL CIRCUITS AND OPERATION (Interrupt and HALT)
4.13.2 Interrupt mask
The interrupt factor flags can be masked by the corresponding interrupt mask registers.
The interrupt mask registers are read/write registers. They are enabled (interrupt authorized) when "1" is
written to them, and masked (interrupt inhibited) when "0" is written to them.
At initial reset, the interrupt mask register is set to "0".
Table 4.13.2.1 shows the correspondence between interrupt mask registers and interrupt factor flags.
Table 4.13.2.1 Interrupt mask registers and interrupt factor flags
IPT1
IPT0
ISIF
IK0
IT3
IT2
IT1
IT0
ISW1
ISW10
(FFF2HD1)
(FFF2HD0)
(FFF3HD0)
(FFF4HD0)
(FFF6HD3)
(FFF6HD2)
(FFF6HD1)
(FFF6HD0)
(FFF7HD1)
(FFF7HD0)
Interrupt factor flag
EIPT1
EIPT0
EISIF
EIK0
EIT3
EIT2
EIT1
EIT0
EISW1
EISW10
(FFE2HD1)
(FFE2HD0)
(FFE3HD0)
(FFE4HD0)
(FFE 6HD3)
(FFE6HD2)
(FFE6HD1)
(FFE6HD0)
(FFE7HD1)
(FFE7HD0)
Interrupt mask register
4.13.3 Interrupt vector
When an interrupt request is input to the CPU, the CPU begins interrupt processing. After the program
being executed is terminated, the interrupt processing is executed in the following order.
1
The content of the flag register is evacuated, then the I flag is reset.
2
The address data (value of program counter) of the program to be executed next is saved in the stack
area (RAM).
3
The interrupt request causes the value of the interrupt vector (0100H–010EH) to be set in the program
counter.
4
The program at the specified address is executed (execution of interrupt processing routine by
software).
Table 4.13.3.1 shows the correspondence of interrupt requests and interrupt vectors.
Table 4.13.3.1 Interrupt request and interrupt vectors
Interrupt vector
0100H
0104H
0106H
0108H
010CH
010EH
Interrupt factor
Watchdog timer
Programmable timer
Serial interface
K00–K03 input
Clock timer
Stopwatch timer
Priority
High
Low
The four low-order bits of the program counter are indirectly addressed through the interrupt request.
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| S1C63557D04Q000 | 制造商:Seiko Instruments Inc (SII) 功能描述:EPSON MCU 4BIT |
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| S1C63616 | 制造商:EPSON 制造商全稱:EPSON 功能描述:4-bit Single Chip Microcomputer |
| S1C63632 | 制造商:EPSON 制造商全稱:EPSON 功能描述:4-bit Single Chip Microcomputer |
| S1C63653 | 制造商:EPSON 制造商全稱:EPSON 功能描述:CMOS 4-bit Single Chip Microcontroller |
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