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參數資料
| 型號： | W9330F |
| 廠商： | WINBOND ELECTRONICS CORP |
| 元件分類： | 無繩電話/電話 |
| 英文描述： | Code Division Spread Spectrum Cordless Telephone Controller(具有編碼分劃和擴展頻普技術的無繩電話控制器) |
| 中文描述： | TELECOM, CORDLESS, SUPPORT CIRCUIT, PQFP100 |
| 封裝： | PLASTIC, QFP-100 |
| 文件頁數： | 9/26頁 |
| 文件大小： | 170K |
| 代理商： | W9330F |
Preliminary W9330F
Publication Release Date: August 1998
- 9 -
Revision A1
Preamble
ID&ST
IDx2
IDx2
IDx2
IDx2
Preamble
ID&ST
Preamble
ID&ST
Data
Data
Data
Data
Acquisition Frame
Empty Frame
Data Frame
Receive frame
Receive frame
Transmit frame
6 mS
3 mS
idle
idle
3. System Controller Interface
Interface to the system controller is through the on-chip registers, the interrupt pin and a group of
auxiliary status signals.
3.1 Control register access
The control registers of the W9330F can be accessed by the system controller through a simple bus
interface. The registers and the I/O expansion ports are uniquely identified by an 8-bit address. The
following diagram illustrates the read and write access timing to the on-chip registers. Each access
must be enclosed by the assertion of CS. As soon as CS is asserted, the access address can be
specified at the AD bus with ALE asserted. The access address is latched by the falling edge of ALE.
Once the address is latched, the access command can be specified by asserting the
RD
or
WR
signals. If
RD
is asserted, the read data is driven by the W9330F on to the AD bus. The system
controller must tri-state the AD bus before asserting
RD
to avoid data contention.
If
WR
is asserted, the data on the AD bus is written into the register specified during ALE. The valid
data must be driven on the AD bus before
WR
is asserted. CS gated write is not supported.
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