- 您现在的位置：买卖IC网 > PDF目录132964 > MQ83C154DTXXX-16/883 (ATMEL CORP) 8-BIT, MROM, 16 MHz, MICROCONTROLLER, CQFP44 PDF资料下载
参数资料
| 型号： | MQ83C154DTXXX-16/883 |
| 厂商： | ATMEL CORP |
| 元件分类： | 微控制器/微处理器 |
| 英文描述： | 8-BIT, MROM, 16 MHz, MICROCONTROLLER, CQFP44 |
| 封装： | CERAMIC, QFP-44 |
| 文件页数： | 8/132页 |
| 文件大小： | 10886K |
| 代理商： | MQ83C154DTXXX-16/883 |
第1页第2页第3页第4页第5页第6页第7页当前第8页第9页第10页第11页第12页第13页第14页第15页第16页第17页第18页第19页第20页第21页第22页第23页第24页第25页第26页第27页第28页第29页第30页第31页第32页第33页第34页第35页第36页第37页第38页第39页第40页第41页第42页第43页第44页第45页第46页第47页第48页第49页第50页第51页第52页第53页第54页第55页第56页第57页第58页第59页第60页第61页第62页第63页第64页第65页第66页第67页第68页第69页第70页第71页第72页第73页第74页第75页第76页第77页第78页第79页第80页第81页第82页第83页第84页第85页第86页第87页第88页第89页第90页第91页第92页第93页第94页第95页第96页第97页第98页第99页第100页第101页第102页第103页第104页第105页第106页第107页第108页第109页第110页第111页第112页第113页第114页第115页第116页第117页第118页第119页第120页第121页第122页第123页第124页第125页第126页第127页第128页第129页第130页第131页第132页
16
7593L–AVR–09/12
AT90USB64/128
5.6.1
RAMPZ - Extended Z-pointer register for ELPM/SPM
For ELPM/SPM instructions, the Z-pointer is a concatenation of RAMPZ, ZH, and ZL, as shown
in Figure 5-4. Note that LPM is not affected by the RAMPZ setting.
Figure 5-4.
The Z-pointer used by ELPM and SPM.
The actual number of bits is implementation dependent. Unused bits in an implementation will
always read as zero. For compatibility with future devices, be sure to write these bits to zero.
5.7
Instruction execution timing
This section describes the general access timing concepts for instruction execution. The AVR
CPU is driven by the CPU clock clk
CPU, directly generated from the selected clock source for the
chip. No internal clock division is used.
Figure 5-5 shows the parallel instruction fetches and instruction executions enabled by the Har-
vard architecture and the fast-access Register File concept. This is the basic pipelining concept
to obtain up to 1 MIPS per MHz with the corresponding unique results for functions per cost,
functions per clocks, and functions per power-unit.
Figure 5-5.
The parallel instruction fetches and instruction executions.
Figure 5-6 shows the internal timing concept for the Register File. In a single clock cycle an ALU
operation using two register operands is executed, and the result is stored back to the destina-
tion register.
Bit
7
6
543
21
0
RAMPZ7
RAMPZ6
RAMPZ5
RAMPZ4
RAMPZ3
RAMPZ2
RAMPZ1
RAMPZ0
RAMPZ
Read/write
R/W
Initial value
00
000
00
0
Bit (individually)
7
0
7
0
7
0
RAMPZ
ZH
ZL
Bit (Z-pointer)
23
16
15
8
7
0
clk
1st instruction fetch
1st instruction execute
2nd instruction fetch
2nd instruction execute
3rd instruction fetch
3rd instruction execute
4th instruction fetch
T1
T2
T3
T4
CPU
相关PDF资料 |
PDF描述 |
|---|---|
| MQ83C154DTXXX-16P883D | 8-BIT, MROM, 16 MHz, MICROCONTROLLER, CQFP44 |
| MD83C154DTXXX-20/883 | 8-BIT, MROM, 20 MHz, MICROCONTROLLER, CDIP40 |
| MR83C154DTXXX-20P883D | 8-BIT, MROM, 20 MHz, MICROCONTROLLER, CQCC44 |
| MR83C154DTXXX-20P883 | 8-BIT, MROM, 20 MHz, MICROCONTROLLER, CQCC44 |
| MR83C154DTXXX-25P883R | 8-BIT, MROM, 25 MHz, MICROCONTROLLER, CQCC44 |
相关代理商/技术参数 |
参数描述 |
|---|---|
| MQ83C154-L16 | 制造商:TEMIC 制造商全称:TEMIC Semiconductors 功能描述:CMOS 0 to 36 MHz Single Chip 8-bit Microcontroller |
| MQ83C154T-12 | 制造商:TEMIC 制造商全称:TEMIC Semiconductors 功能描述:CMOS 0 to 36 MHz Single Chip 8-bit Microcontroller |
| MQ83C154T-16 | 制造商:TEMIC 制造商全称:TEMIC Semiconductors 功能描述:CMOS 0 to 36 MHz Single Chip 8-bit Microcontroller |
| MQ83C154T-20 | 制造商:TEMIC 制造商全称:TEMIC Semiconductors 功能描述:CMOS 0 to 36 MHz Single Chip 8-bit Microcontroller |
| MQ83C154T-25 | 制造商:TEMIC 制造商全称:TEMIC Semiconductors 功能描述:CMOS 0 to 36 MHz Single Chip 8-bit Microcontroller |
发布紧急采购，3分钟左右您将得到回复。