- 您現(xiàn)在的位置：買賣IC網(wǎng) > PDF目錄384643 > M66222SP (Mitsubishi Electric Corporation) POT THUMBWHEEL 5K OHM AUDIO PDF資料下載
參數(shù)資料
| 型號： | M66222SP |
| 廠商： | Mitsubishi Electric Corporation |
| 英文描述： | POT THUMBWHEEL 5K OHM AUDIO |
| 中文描述： | 128 × 8位× 2企業(yè)郵箱 |
| 文件頁數(shù)： | 3/8頁 |
| 文件大小： | 107K |
| 代理商： | M66222SP |
MITSUBISHI
DIGITAL ASSP
M66222SP/FP
128
×
8-BIT
×
2 MAIL-BOX
3
FUNCTIONAL DESCRIPTION
The M66222 with independent and asynchronous accessibility from
two ports has the following four basic operations depending on an
address and mode set from both ports:
(1) A port .......... Write
B port .......... Write
(2) A port .......... Write
B port .......... Read
(3) A port .......... Read
B port .......... Write
(4) A port .......... Read
B port .......... Read
In this case, the same address is not selected when the same read/
write instruction is being executed at both ports as given in (1) and
(4). There is no concern about uncertainty of read/write data at an
active address. If one port operates in the write mode and the other
does in the read mode as given in (2) and (3), however, the same
address may be selected. In this case, data of the port operating in
the write mode is written. If the port in the read mode comes first,
read data of the first-in port becomes uncertain until write data of the
last-in port is determined (If the same address is selected, data of
the port operating in the write mode is written into memory. Therefore,
data of the port in the read mode may change from previously written
data to newly written ones during the same cycle) (See Fig 2).
Ex.) A port - address setting first-in read operation
B port - address setting last-in write operation
A port address
B port address
WEB
B port I/O
(D
IN
)
A port I/O
(D
OUT
)
: When selecting the same address
Data B
Data B
Data A
(Data read to A port)
Fig 2 Example of Read Data Transition at Selection of Same Address
(Data written from B port)
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| M66222FP | 128 x 8-BIT x 2 MAIL-BOX |
| M66255FP | Cable Ties; Pack Quantity:1000 RoHS Compliant: Yes |
| M66273FP | LCD CONTROLLER with VRAM |
| M66280FP | 5120 x 8-BIT LINE MEMORY |
| M66281FP | 5120 x 8-BIT x 2 LINE MEMORY |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| M66223FP | 制造商:RENESAS 制造商全稱:Renesas Technology Corp 功能描述:Mail Box That Incorporates a Complete CMOS Shared Memory Cell |
| M66230FP | 制造商:MITSUBISHI 制造商全稱:Mitsubishi Electric Semiconductor 功能描述:A2RT(ADVANCED ASYNCHRONOUS RECEIVER & TRANSMITTER) |
| M66230P | 制造商:MITSUBISHI 制造商全稱:Mitsubishi Electric Semiconductor 功能描述:A2RT(ADVANCED ASYNCHRONOUS RECEIVER & TRANSMITTER) |
| M66235 | 制造商:MITSUBISHI 制造商全稱:Mitsubishi Electric Semiconductor 功能描述:STANDARD CLOCK GENERATOR |
| M66235FP | 制造商:RENESAS 制造商全稱:Renesas Technology Corp 功能描述:STANDARD CLOCK GENERATOR |
發(fā)布緊急采購，3分鐘左右您將得到回復(fù)。