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參數資料
| 型號： | 73K302L-IP |
| 廠商： | TDK Corporation |
| 英文描述： | Single-Chip Modem |
| 中文描述： | 單芯片調制解調器 |
| 文件頁數： | 5/29頁 |
| 文件大?。?/td> | 282K |
| 代理商： | 73K302L-IP |
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73K302L
Bell 212A, 103, 202
Single-Chip Modem
5
PARALLEL MICROPROCESSOR INTERFACE
(continued)
NAME
PLCC/PIN
DIP NUMBER
TYPE
DESCRIPTION
WR
13
I
Write. A low on this informs the 73K302L that data is available on
AD0-AD7 for writing into an internal register. Data is latched on the
rising edge of
WR
. No data is written unless both
WR
and the latched
CS
are active low.
SERIAL MICROPROCESSOR INTERFACE
A0-A2
46
I
Register Address Selection. These lines carry register addresses and
should be valid during any read or write operation.
DATA
11
I/O
Serial Control Data. Data for a read/write operation is clocked in or
out on the falling edge of the EXCLK pin. The direction of data flow is
controlled by the
RD
pin.
RD
low outputs data.
RD
high inputs data.
RD
14
I
Read. A low on this input informs the 73K302L that data or status
information is being read by the processor. The falling edge of the
RD
signal will initiate a read from the addressed register. The
RD
signal
must continue for eight falling edges of EXCLK in order to read all
eight bits of the referenced register. Read data is provided LSB first.
Data will not be output unless the
RD
signal is active.
WR
13
I
Write. A low on this input informs the 73K302L that data or status
information has been shifted in through the DATA pin and is available
for writing to an internal register. The normal procedure for a write is
to shift in data LSB first on the DATA pin for eight consecutive falling
edges of EXCLK and then to pulse
WR
low. Data is written on the
rising edge of
WR
.
Note:
The serial control mode is provided by tying ALE high and
CS
low. In this configuration AD7 becomes the
data input and AD0, AD1 and AD2 become the address only. See the SERIAL CONTROL TIMING
diagram on page22
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相關代理商/技術參數 |
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|---|---|
| 73K321L | 制造商:TDK 制造商全稱:TDK Electronics 功能描述:CCITT V.23, V.21 Single-Chip Modem |
| 73K321L-IH | 制造商:TDK 制造商全稱:TDK Electronics 功能描述:CCITT V.23, V.21 Single-Chip Modem |
| 73K321L-IP | 制造商:TDK 制造商全稱:TDK Electronics 功能描述:CCITT V.23, V.21 Single-Chip Modem |
| 73K322L | 制造商:TDK 制造商全稱:TDK Electronics 功能描述:CCITT V.23, V.22, V.21 Single-Chip Modem |
| 73K322L-IH | 制造商:TDK 制造商全稱:TDK Electronics 功能描述:CCITT V.23, V.22, V.21 Single-Chip Modem |
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