參數(shù)資料
型號: S1C621A0F0A0100
元件分類: 微控制器/微處理器
英文描述: MICROCONTROLLER, PQFP80
封裝: QFP-80
文件頁數(shù): 138/161頁
文件大?。?/td> 1037K
代理商: S1C621A0F0A0100
S1C621A0 TECHNICAL HARDWARE
EPSON
I-53
CHAPTER 3: PERIPHERAL CIRCUITS (Interrupt and Halt)
Interrupt request
An interrupt request is caused by one of the following fac-
tors:
Table 3.11.2
Interrupt Factor and Interrupt
Factor Flag
An interrupt factor sets the corresponding interrupt factor
flag (read-only register) to 1. When its data is read, the
register is reset to 0. At initial reset, it is reset to 0. (In this
case, the value of the REM interrupt factor flag (IREM) is
undefined.)
When the interrupt factor flag is set to 1 with both the
corresponding interrupt mask register and interrupt flag set
at 1, an interrupt request to the CPU is generated. (See
Figure 3.11.3.)
Read the interrupt factor flag in DI status (interrupt flag =
0). Reading of interrupt factor flags is available at EI, but be
careful in the following cases.
If the interrupt mask register value corresponding to the
interrupt factor flags to be read is set to 1, an interrupt
request will be generated by the interrupt factor flags set
timing, or an interrupt request will not be generated. Be very
careful when interrupt factor flags are in the same address.
Falling edge of 2 Hz timer signal
Falling edge of 8 Hz timer signal
Falling edge of 32 Hz timer signal
REM control
Falling edge of input (K10–K13)
Falling edge of input (K00–K03)
TI2
TI8
TI32
IREM
IK1
IK0
(0F1HD2)
(0F1HD1)
(0F1HD0)
(0F0HD2)
(0F0HD1)
(0F0HD0)
Interrupt factor
Interrupt factor flag
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