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): 46/81頁
文件大?。?/td> 441K
代理商: ΜPD705100
46
V830
TM
USER'S MANUAL
(2) Lower halfword
During read cycles, data is read from D0-D15.
During write cycles, D0-D15 data read from the write buffer is output to D0-D15.
Figure 5-2 shows the operation for lower halfword access. In this figure, A indicates the lower halfword
(low-order 16 bits of the word).
Figure 5-2. Lower Halfword Access
Read cycle
Write cycle
Read buffer
31
Write buffer
31
Internal
operation
unit
Data bus
Internal
operation
unit
Data bus
A
0
16
15
16
15
0
31
A
0
16
15
16
15
0
31
A
A
5.1.2 Word Access
Bus cycles in any of three bus states (Ta, Tw1, and Tw2) are used for word access.
During a read cycle, the low-order 16 bits of data and high-order 16 bits of data are sampled from D0-D15
in the Tw1 and Tw2 state, respectively. During write cycles, the low-order 16 bits of data and high-order 16
bits of data are output to D0-D15 in the Ta/Tw1 state and Tw2 states, respectively.
Figure 5-3. Read Cycle
Tw1 state
Tw2 state
Read buffer
31
Read buffer
31
Internal
operation
unit
Data bus
Internal
operation
unit
Data bus
B
0
16
15
16
15
0
31
A
0
16
15
16
15
0
31
A
B
A
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: