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參數(shù)資料
| 型號(hào)： | μPD784036 |
| 廠商： | NEC Corp. |
| 英文描述： | 8/16 Bit Single Chip Microcontrollers(8/16 位微控制器) |
| 中文描述： | 8 / 16位單片機(jī)微控制器（8 / 16位微控制器） |
| 文件頁(yè)數(shù)： | 47/98頁(yè) |
| 文件大?。?/td> | 650K |
| 代理商： | ΜPD784036 |
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47
μ
PD784035, 784036, 784037, 784038
9. INTERRUPT FUNCTION
Table 9-1 lists the interrupt request handling modes. These modes are selected by software.
Table 9-1. Interrupt Request Handling Modes
9.1 Interrupt Source
An interrupt can be issued from any one of the interrupt sources listed in Table 9-2: execution of a BRK instruction
and BRKCS instruction, an operand error, or any of the 23 other interrupt sources.
Four levels of interrupt handling priority can be set. Priority levels can be set to nest control during interrupt handling
or to concurrently generate interrupt requests. Nested macro services, however, are performed without suspension.
When interrupt requests having the same priority level are generated, they are handled according to the default
priority (fixed). (See
Table 9-2
.)
Handling mode
Handled by
Handling
PC and PSW contents
Vectored interrupt
Software
Branches to a handling routine for execution
(arbitrary handling).
The PC and PSW contents are pushed
to and popped from the stack.
Context switching
Automatically selects a register bank, and
branches to a handling routine for execution
(arbitrary handling).
The PC and PSW contents are saved to
and read from a fixed area in the
register bank.
Macro service
Firmware
Performs operations such as memory-to-I/O-
device data transfer (fixed handling).
Maintained
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| μPD784035 | 8/16 Bit Single Chip Microcontrollers(8/16 位微控制器) |
| μPD784038 | 8/16 Bit Single Chip Microcontrollers(8/16位單片微控制器) |
| μPD784037 | 8/16 Bit Single Chip Microcontrollers(8/16位單片微控制器) |
| μPD784038Y | 8/16 Bit Single Chip Microcontrollers(8/16 位微控制器) |
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| PD78F0134 | 制造商:NEC 制造商全稱:NEC 功能描述:8-Bit Single-Chip Microcontrollers |
| PD78F0134(A) | 制造商:NEC 制造商全稱:NEC 功能描述:8-Bit Single-Chip Microcontrollers |
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