參數(shù)資料
型號(hào): PEF24901
英文描述: ISDN LINE INTERFACE|BASIC|CMOS|QFP|64PIN|PLASTIC
中文描述: 綜合業(yè)務(wù)數(shù)字網(wǎng)線(xiàn)接口|基本|的CMOS | QFP封裝| 64管腳|塑料
文件頁(yè)數(shù): 46/73頁(yè)
文件大?。?/td> 1618K
代理商: PEF24901
PEB 2466
PEF 2466
Interface Description
Hardware Reference Manual
37
2001-02-20
.
Figure 22
Example for a One-Byte Read Access
For byte-by-byte transfer, the high time of DCLK can be prolonged, resulting in a
user-defined
waiting time
between bytes. This mechanism can be used for writing to
and reading from the device.
Figure 23
Example for a Read Access with Byte-by-Byte Transfer
Read and write commands can be chained by leaving CS# low after the completion of
each command sequence.
For read or write access to individual registers, the command sequence may be
terminated by rising CS# after the transmission of any number of bytes.
7 6 5 4 3 2 1 0
DIN
DOUT
DCLK
CS#
Read Command
Data Byte 1
High 'Z'
7 6 5 4 3 2 1 0 7 6 5 4 3 2 1 0
High 'Z'
Identification 81
H
2466_223
7 6 5 4 3 2 1 0
DIN
DOUT
DCLK
CS#
Read Command
Data Byte 1
High 'Z'
High 'Z'
7 6 5 4 3 2 1
0
7 6 5 4 3 2 1 0
Identification 81
H
2466_224
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