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參數(shù)資料
| 型號： | 90S4414 |
| 廠商： | Atmel Corp. |
| 英文描述： | 16 Characters x 2 Lines, 5x7 Dot Matrix Character and Cursor |
| 中文描述： | 8位微控制器4K字節(jié)的系統(tǒng)內(nèi)可編程閃存 |
| 文件頁數(shù)： | 5/10頁 |
| 文件大?。?/td> | 736K |
| 代理商： | 90S4414 |
AT90S4414
5
have a single 16-bit word format. Every program memory
address contains a 16- or 32-bit instruction.
During interrupts and subroutine calls, the return address
program counter (PC) is stored on the stack. The stack is
effectively allocated in the general data SRAM, and conse-
quently the stack size is only limited by the total SRAM size
and the usage of the SRAM. All user programs must initial-
ize the SP in the reset routine (before subroutines or inter-
rupts are executed). The 16-bit stack pointer SP is
read/write accessible in the I/O space.
The 256 bytes data SRAM can be easily accessed through
the five different addressing modes supported in the AVR
architecture.
The memory spaces in the AVR architecture are all linear
and regular memory maps.
Figure 5.
Memory Maps
A flexible interrupt module has its control registers in the
I/O space with an additional global interrupt enable bit in
the status register. All the different interrupts have a sepa-
rate interrupt vector in the interrupt vector table at the
beginning of the program memory. The different interrupts
have priority in accordance with their interrupt vector posi-
tion. The lower the interrupt vector address the higher prior-
ity.
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相關(guān)代理商/技術(shù)參數(shù) |
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| 90S7A | 制造商:QUARTZCOM 制造商全稱:QUARTZCOM the communications company 功能描述:-20 ~ +70 °C commercia l application -30 ~ +75 °C on request |
| 90S8535 | 制造商:ATMEL 制造商全稱:ATMEL Corporation 功能描述:8-Bit Microcontroller with 4K/8K Bytes In-System Programmable Flash |
| 90SC15B | 制造商:NDK 制造商全稱:NDK 功能描述:four-pole crystal filter with a built-in coupling capacitor |
| 90SCFM | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:20SCFM |
| 90SERIES | 制造商:MALLORY 制造商全稱:MALLORY 功能描述:POINT TYPE DISTRIBUTOR |
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