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参数资料
| 型号： | RTC-4701JEB |
| 厂商： | EPSON TOYOCOM CORP |
| 元件分类： | 时钟/数据恢复及定时提取 |
| 英文描述： | REAL TIME CLOCK, PDSO20 |
| 封装： | VSOJ-20 |
| 文件页数： | 11/22页 |
| 文件大小： | 203K |
| 代理商： | RTC-4701JEB |
C165
Data Sheet
15
V2.0, 2000-12
Central Processing Unit (CPU)
The main core of the CPU consists of a 4-stage instruction pipeline, a 16-bit arithmetic
and logic unit (ALU) and dedicated SFRs. Additional hardware has been spent for a
separate multiply and divide unit, a bit-mask generator and a barrel shifter.
Based on these hardware provisions, most of the C165’s instructions can be executed
in just one machine cycle which requires 80 ns at 25 MHz CPU clock. For example, shift
and rotate instructions are always processed during one machine cycle independent of
the number of bits to be shifted. All multiple-cycle instructions have been optimized so
that they can be executed very fast as well: branches in 2 cycles, a 16
× 16 bit
multiplication in 5 cycles and a 32-/16 bit division in 10 cycles. Another pipeline
optimization, the so-called ‘Jump Cache’, allows reducing the execution time of
repeatedly performed jumps in a loop from 2 cycles to 1 cycle.
Figure 5
CPU Block Diagram
MCB02147
CPU
SP
STKOV
STKUN
Instr. Reg.
Instr. Ptr.
Exec. Unit
4-Stage
Pipeline
MDH
MDL
PSW
SYSCON
Context Ptr.
Mul/Div-HW
R15
R0
General
Purpose
Registers
Bit-Mask Gen
Barrel - Shifter
ALU
(16-bit)
Data Page Ptr.
Code Seg. Ptr.
Internal
RAM
R15
R0
ROM
16
32
BUSCON 0
BUSCON 1
BUSCON 2
BUSCON 3
BUSCON 4
ADDRSEL 4
ADDRSEL 3
ADDRSEL 2
ADDRSEL 1
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PDF描述 |
|---|---|
| RTC-62423B-0 | REAL TIME CLOCK, PDSO24 |
| RTC-62423A-3 | 0 TIMER(S), REAL TIME CLOCK, PDSO24 |
| RTC-62423B-0 | REAL TIME CLOCK, PDSO24 |
| RTC-72421A | 0 TIMER(S), REAL TIME CLOCK, PDIP18 |
| RTC-72421B | 0 TIMER(S), REAL TIME CLOCK, PDIP18 |
相关代理商/技术参数 |
参数描述 |
|---|---|
| RTC-4701NB | 制造商:EPSONTOYOCOM 制造商全称:Epson ToYoCom 功能描述:Built-in Temperature Sensor SERIAL-INTERFACE REAL TIME CLOCK MODULE |
| RTC5 | 制造商:CIT 制造商全称:CIT Relay & Switch 功能描述:CIT SWITCH |
| RTC51 | 功能描述:LED 安装硬件 5MM LED HOUSING BLACK NYLON 6/6 RoHS:否 制造商:Bivar 产品:LED Mounting Clips LED 大小:5 mm 材料:Nylon 颜色:Black 主体长度:4.4 mm 面板厚度尺寸: 封装:Bulk |
| RTC-51 | 制造商:Kingbright Corporation 功能描述:CLIP FOR 5 MM LED 制造商:Kingbright Corporation 功能描述:CLIP FOR 5 MM LED; Height:7mm; Spacer Material:Nylon 6.6 (Polyamide 6.6); External Diameter:6.5mm; SVHC:No SVHC (19-Dec-2012); Accessory Type:Clip; For Use With:LED Lamps ;RoHS Compliant: Yes |
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