參數(shù)資料
型號(hào): S1C60L05F
元件分類: 微控制器/微處理器
英文描述: 4-BIT, MROM, 0.08 MHz, MICROCONTROLLER, PQFP60
封裝: PLASTIC, QFP6-60
文件頁數(shù): 71/104頁
文件大?。?/td> 697K
代理商: S1C60L05F
S1C60N05 TECHNICAL MANUAL
EPSON
61
CHAPTER 4: PERIPHERAL CIRCUITS AND OPERATION (Interrupt and HALT)
The interrupt factor flags can be masked by the correspond-
ing interrupt mask registers. The interrupt mask registers
are read/write registers. They are enabled (interrupt en-
abled) when "1" is written to them, and masked (interrupt
disabled) when "0" is written to them. After an initial reset,
the interrupt mask register is set to "0".
Table 4.10.2 shows the correspondence between interrupt
mask registers and interrupt factor flags.
Specific masks and
factor flags for inter-
rupt
Table 4.10.2
Interrupt mask registers and
interrupt factor flags
Interrupt mask register
Interrupt factor flag
(0EBH D2)
(0EBH D1)
(0EBH D0)
(0ECH D0)
(0E8H D3)
(0E8H D2)
(0E8H D1)
(0E8H D0)
IT2
IT8
IT32
IAD
(0EFH D2)
(0EFH D1)
(0EFH D0)
(0F0H D0)
IK0
(0EDH D0)
EIT2
EIT8
EIT32
EIAD
EIK03*
EIK02*
EIK01*
EIK00*
*
There is an interrupt mask register for each input port pin.
When an interrupt request is input to the CPU, the CPU
begins interrupt processing. After the program being exe-
cuted is suspended, interrupt processing is executed in the
following order:
The address data (value of the program counter) of the
program step to be executed next is saved on the stack
(RAM).
The interrupt request causes the value of the interrupt
vector (page 1, 01H–07H) to be loaded into the program
counter.
The program at the specified address is executed (execu-
tion of interrupt processing routine).
The processing in steps 1 and 2, above, takes 12 cycles of the
CPU system clock.
Interrupt vectors
Note
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