參數(shù)資料
型號: μPD705100
廠商: NEC Corp.
英文描述: 32 Bit Microprocessor(32 位微處理器)
中文描述: 32位微處理器(32位微處理器)
文件頁數(shù): 47/81頁
文件大小: 441K
代理商: ΜPD705100
47
CHAPTER 5 16-BIT BUS MODE
Figure 5-4. Write Cycle
Ta, Tw1 state
Tw2 state
Write buffer
31
Write buffer
31
Internal
operation
unit
Data bus
Internal
operation
unit
Data bus
0
16
15
16
15
0
31
0
16
15
31
16
15
0
A
B
A
B
B
5.2 RELATIONSHIP BETWEEN EXTERNAL ACCESS AND DATA BUS
This section explains data I/O and the byte enable signals (BEn) for external access.
5.2.1 Relationship between External Access and Byte Enable Signals
In 16-bit bus mode, the BE3/A1 output acts as A1 and BE2/BH output acts as BH. External accesses are
related to the byte enable signals as indicated below.
Table 5-1. 16-Bit Bus Mode
Data length
Operand address
Byte enable
State
Bit 1
Bit 0
A1
BH
BE1
BE0
Byte
0
0
0
1
1
0
Ta,Ts
0
1
0
1
0
1
Ta,Ts
1
0
1
1
1
0
Ta,Ts
1
1
1
1
0
1
Ta,Ts
Halfword
0
0
0
1
0
0
Ta,Ts
1
0
1
1
0
0
Ta,Ts
Word
0
0
0
0
0
0
Ta,Tw1
1
0
0
0
Tw2
Burst transfer
0
0
0
0
0
0
Ta,Tb1
1
0
0
0
Tb2
0
0
0
0
Tb3
1
0
0
0
Tb4
0
0
0
0
Tb5
1
0
0
0
Tb6
0
0
0
0
Tb7
1
0
0
0
Tb8
相關(guān)PDF資料
PDF描述
μPD705101 32 Bit Microprocessor(32 位微處理器)
μPD705102GM-143-8ED 32 Bit RISC Microcontrollers(32 位RISC 微控制器)
μPD705102 32 Bit Single Chip Microcontrollers(32 位單片微控制器)
μPD70F3003A 16/32 Bit RISC Microcontrollers(16/32位單片微控制器)
μPD703005A 16/32 Bit Single Chip Microcontrollers(16/32位單片微控制器)
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
PD7087 制造商:MITSUBISHI 制造商全稱:Mitsubishi Electric Semiconductor 功能描述:InGaAs PIN PHOTO DIODES
PD7088 制造商:MITSUBISHI 制造商全稱:Mitsubishi Electric Semiconductor 功能描述:InGaAs PIN PHOTO DIODES
PD708C7 制造商:MITSUBISHI 制造商全稱:Mitsubishi Electric Semiconductor 功能描述:InGaAs PIN PHOTO DIODES
PD708C8 制造商:MITSUBISHI 制造商全稱:Mitsubishi Electric Semiconductor 功能描述:InGaAs PIN PHOTO DIODES
PD70CNT12M5MH 制造商:Carlo Gavazzi 功能描述: