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| 型號(hào)： | M32180F8VFP |
| 元件分類： | 微控制器/微處理器 |
| 英文描述： | 32-BIT, FLASH, 64 MHz, RISC MICROCONTROLLER, PQFP240 |
| 封裝： | 32 X 32 MM, 0.50 MM PITCH, PLASTIC, QFP-240 |
| 文件頁(yè)數(shù)： | 134/139頁(yè) |
| 文件大?。?/td> | 3774K |
| 代理商： | M32180F8VFP |
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4
4-5
EIT
32180 Group User’s Manual (Rev.1.0)
4.2 EIT Events
5) Invalid Operation Exception (IVLD)
The exception occurs when an invalid operation is executed. The following table shows the operation
results and the respective conditions in which each IVLD occurs.
Table 4.2.6 Operation Results When an IVLD Occurred
Note 1: When the invalid operation exception enable (EV) bit (FPSR register bit 21) = "0"
Note 2: When the invalid operation exception enable (EV) bit (FPSR register bit 21) = "1"
Note: NaN (Not a Number)
SNaN (Signaling NaN): a NaN in which the MSB of the decimal fraction is "0". When SNaN is used as the
source operand in an operation, an IVLD occurs. SNaNs are useful in identifying program bugs when used
as the initial value in a variable. However, SNaNs cannot be generated by hardware.
QNaN (Quiet NaN): a NaN in which the MSB of the decimal fraction is "1". Even when QNaN is used as the
source operand in an operation, an IVLD will not occur (excluding comparison and format conversion).
Because a result can be checked by the arithmetic operations, QNaN allows the user to debug without
executing an EIT processing. QNaNs are created by hardware.
6) Unimplemented Exception (UIPL)
The exception occurs when the denormalized number zero flush (DN) bit (FPSR register bit 23) = "0" and
a denormalized number is given as an operation operand. (Note 1)
Because the UIPL has no enable bits available, it cannot be masked when they occur. The destination
register remains unchanged.
Note 1: A UDF occurs when the intermediate result of an operation is a denormalized number, in which case if
the DN bit (FPSR register bit 23) = "0", an UIPL occurs.
4.2.2 Interrupt
(1) Reset Interrupt (RI)
Reset Interrupt (RI) is always accepted by entering the RESET# signal. The reset interrupt is assigned the
highest priority.
For details about the reset interrupt, see Chapter 7, “Reset.”
(2) System Break Interrupt (SBI)
System Break Interrupt (SBI) is an emergency interrupt which is used when power outage is detected or a fault
condition is notified by an external watchdog timer. This interrupt can only be used in cases when after interrupt
processing, control will not return to the program that was being executed when the interrupt occurred.
(3) External Interrupt (EI)
External Interrupt (EI) is requested from internal peripheral I/Os managed by the interrupt controller. The
interrupt controller manages these interrupts by assigning each one of eight priority levels including an
interrupt-disabled state.
Operation Result (Content of the Destination Register)
When the IVLD EIT processing is masked (Note 1)
When the IVLD EIT
processing is executed
(Note 2)
When an integer conversion
overflowed
When FTOI
instruction was
executed
Return value when pre-conversion signed bit is:
"0": H 7FFF FFFF
"1": H 8000 0000
When NaN or Infinity was converted
into an integer
When FTOS
instruction was
executed
Return value when pre-conversion signed bit is:
"0": H 0000 7FFF
"1": H FFFF 8000
Comparison results (comparison invalid)
QNaN
No change
Occurrence Condition
Operation for SNaN operand
+Infinity-(+Infinity), -Infinity-(-Infinity)
0 x Infinity
0 / 0, Infinity / Infinity
When < or > comparison was performed on NaN
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| M32182F3VFP | 32-BIT, FLASH, 64 MHz, RISC MICROCONTROLLER, PQFP144 |
| M32182F3UFP | 32-BIT, FLASH, 80 MHz, RISC MICROCONTROLLER, PQFP144 |
| M32182F3TFP | 32-BIT, FLASH, 80 MHz, RISC MICROCONTROLLER, PQFP144 |
| M32182F3VFP | 32-BIT, FLASH, 64 MHz, RISC MICROCONTROLLER, PQFP144 |
| M32182F3TFP | 32-BIT, FLASH, 80 MHz, RISC MICROCONTROLLER, PQFP144 |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| M32180T2-PTC | 功能描述:DEV CONNECTION CNVTR FOR 32180 G RoHS:否 類別:編程器，開發(fā)系統(tǒng) >> 配件 系列:- 產(chǎn)品培訓(xùn)模塊:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program RoHS指令信息:IButton RoHS Compliance Plan 標(biāo)準(zhǔn)包裝:1 系列:- 附件類型:USB 至 1-Wire? RJ11 適配器 適用于相關(guān)產(chǎn)品:1-Wire? 設(shè)備 產(chǎn)品目錄頁(yè)面:1429 (CN2011-ZH PDF) |
| M32182F3TFP | 制造商:RENESAS 制造商全稱:Renesas Technology Corp 功能描述:32-BIT RISC SINGLE-CHIP MICROCOMPUTER M32R FAMILY / M32R/ECU SERIES |
| M32182F3UFP | 制造商:RENESAS 制造商全稱:Renesas Technology Corp 功能描述:32-BIT RISC SINGLE-CHIP MICROCOMPUTER M32R FAMILY / M32R/ECU SERIES |
| M32182F3VFP | 制造商:RENESAS 制造商全稱:Renesas Technology Corp 功能描述:32-BIT RISC SINGLE-CHIP MICROCOMPUTER M32R FAMILY / M32R/ECU SERIES |
| M32182F8TFP | 制造商:RENESAS 制造商全稱:Renesas Technology Corp 功能描述:32-BIT RISC SINGLE-CHIP MICROCOMPUTER M32R FAMILY / M32R/ECU SERIES |
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