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| 型号： | ACE1202EM |
| 厂商： | FAIRCHILD SEMICONDUCTOR CORP |
| 元件分类： | 微控制器/微处理器 |
| 英文描述： | Arithmetic Controller Engine (ACEx⑩) for Low Power Applications |
| 中文描述： | 8-BIT, EEPROM, 1 MHz, MICROCONTROLLER, PDSO14 |
| 封装： | PLASTIC, SOIC-14 |
| 文件页数： | 14/39页 |
| 文件大小： | 2121K |
| 代理商： | ACE1202EM |
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ACE1202 Product Family Rev. B.1
A
The ACEx microcontroller is capable of supporting four interrupts.
Three are maskable through the G bit of the SR and the fourth
(software interrupt) is not inhibited by the G bit (see Figure 13). The
software interrupt instruction is generated by the execution of the
INTR instruction. once the INTR instruction is executed, the ACEx
core will interrupt whether the G bit is set or not. The INTR interrupt
is executed in the same manner as the other maskable interrupts
where the program counter register is stacked and the G bit is
cleared. This means, if the G bit was enabled prior to the software
interrupt the RETI instruction must be used to return from interrupt
in order to restore the G bit to its previous state. However, if the G
bit was not enabled prior to the software interrupt the RET
instruction must be used.
In case of multiple interrupts occurring at the same time, the ACEx
microcontroller core has prioritized the interrupts. The interrupt
priority sequence in shown in Table 8.
4.3 Addressing Modes
The ACEx microcontroller has seven addressing modes indexed,
indirect, direct, immediate, absolute jump, and relative jump.
Indexed
The instruction allows an 8-bit unsigned offset value to be added to
the 11-LSBs of the X-pointer yielding a new effective address. This
mode can be used to address either data or program memory space.
Indirect
The instruction allows the X-pointer to address any location within
the data memory space.
Direct
The instruction contains an 8-bit address field that directly points
to the data memory space as an operand.
Immediate
The instruction contains an 8-bit immediate field as an operand.
Inherent
This instruction has no operands associated with it.
Absolute
The instruction contains a 11-bit address that directly points to a
location in the program memory space. There are two operands
associated with this addressing mode. Each operand contains a
byte of an address. This mode is used only for the long jump (JMP)
and JSR instructions.
Relative
This mode is used for the short jump (JP) instructions where the
operand is a value relative to the current PC address. With this
instruction, software is limited to the number of bytes it can jump,
-31 or +32.
Figure 13: Basic Interrupt Structure
T1PND
T0PND
WKPND
T1EN
T0INT
EN
WKINT
EN
G
INTR
T1
T0
MIW
Interrupt
Pending
Flags
Interrupt Enable Bits
Global Interrupt
Enable
Interrupt
I
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相关代理商/技术参数 |
参数描述 |
|---|---|
| ACE1202EM8 | 功能描述:8位微控制器 -MCU arithmetic Controllr Engine RoHS:否 制造商:Silicon Labs 核心:8051 处理器系列:C8051F39x 数据总线宽度:8 bit 最大时钟频率:50 MHz 程序存储器大小:16 KB 数据 RAM 大小:1 KB 片上 ADC:Yes 工作电源电压:1.8 V to 3.6 V 工作温度范围:- 40 C to + 105 C 封装 / 箱体:QFN-20 安装风格:SMD/SMT |
| ACE1202EM8X | 功能描述:8位微控制器 -MCU arithmetic Controllr Engine RoHS:否 制造商:Silicon Labs 核心:8051 处理器系列:C8051F39x 数据总线宽度:8 bit 最大时钟频率:50 MHz 程序存储器大小:16 KB 数据 RAM 大小:1 KB 片上 ADC:Yes 工作电源电压:1.8 V to 3.6 V 工作温度范围:- 40 C to + 105 C 封装 / 箱体:QFN-20 安装风格:SMD/SMT |
| ACE1202EM8X WAF | 制造商:Fairchild Semiconductor Corporation 功能描述: |
| ACE1202EM8X-EM2C171 WAF | 制造商:Fairchild Semiconductor Corporation 功能描述: |
| ACE1202EM8X-EM2C172 WAF | 制造商:Fairchild Semiconductor Corporation 功能描述: |
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