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參數(shù)資料
| 型號： | ACE12022B |
| 廠商： | Fairchild Semiconductor Corporation |
| 英文描述： | Arithmetic Controller Engine (ACEx⑩) for Low Power Applications |
| 中文描述： | 算術(shù)控制器引擎（ACEx⑩）的低功耗應(yīng)用 |
| 文件頁數(shù)： | 12/39頁 |
| 文件大?。?/td> | 2121K |
| 代理商： | ACE12022B |
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www.fairchildsemi.com
ACE1202 Product Family Rev. B.1
A
4.0 Arithmetic Controller Core
The ACEx microcontroller core is specifically designed for low
cost applications involving bit manipulation, shifting and block
encryption.It is based on a modified Harvard architecture meaning
peripheral, I/O, and RAM locations are addressed separately from
instruction data.
The core differs from the traditional Harvard architecture by
aligning the data and instruction memory sequentially. This allows
the X-pointer (12-bits) to point to any memory location in either
Figure 12: Programming Model
segment of the memory map. This modification improves the
overall code efficiency of the ACEx microcontroller and takes
advantage of the flexibility found on Von Neumann style ma-
chines.
4.1 CPU Registers
The ACEx microcontroller has five general-purpose registers.
These registers are the Accumulator (A), X-Pointer (X), Program
Counter (PC), Stack Pointer (SP), and Status Register (SR). The
X, SP, and SR registers are all memory-mapped.
8-bit accumulator register
12-bit X pointer register
11-bit program counter
4-bit stack pointer
8-bit status register
NEGATIVE flag
HALF CARRY flag (from bit 3)
CARRY flag (from MSB)
ZERO flag
GLOBAL Interrupt Mask
READY flag (from EEPROM)
A
X
PC
SP
SR
0
0
0
0
N
H
C
Z
G
0
0
R
7
11
10
3
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| ACE1202BEM8X | Arithmetic Controller Engine (ACEx⑩) for Low Power Applications |
| ACE12022EN14 | Arithmetic Controller Engine (ACEx⑩) for Low Power Applications |
| ACE12022BEN14 | Arithmetic Controller Engine (ACEx⑩) for Low Power Applications |
| ACE1202EN14 | Arithmetic Controller Engine (ACEx⑩) for Low Power Applications |
| ACE1202BEN14 | Arithmetic Controller Engine (ACEx⑩) for Low Power Applications |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| ACE12022BE | 制造商:FAIRCHILD 制造商全稱:Fairchild Semiconductor 功能描述:Arithmetic Controller Engine (ACEx⑩) for Low Power Applications |
| ACE12022BEM | 制造商:FAIRCHILD 制造商全稱:Fairchild Semiconductor 功能描述:Arithmetic Controller Engine (ACEx⑩) for Low Power Applications |
| ACE12022BEM8 | 制造商:FAIRCHILD 制造商全稱:Fairchild Semiconductor 功能描述:Arithmetic Controller Engine (ACEx⑩) for Low Power Applications |
| ACE12022BEM8X | 制造商:FAIRCHILD 制造商全稱:Fairchild Semiconductor 功能描述:Arithmetic Controller Engine (ACEx⑩) for Low Power Applications |
| ACE12022BEMX | 制造商:FAIRCHILD 制造商全稱:Fairchild Semiconductor 功能描述:Arithmetic Controller Engine (ACEx⑩) for Low Power Applications |
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