參數(shù)資料
型號(hào)： 73K222AU
廠商： TDK Corporation
英文描述： Single-Chip Modem Modem with UART
中文描述： 單芯片調(diào)制解調(diào)器調(diào)制解調(diào)器與異步
文件頁(yè)數(shù)： 5/28頁(yè)
文件大?。?/td> 160K
代理商： 73K222AU
73K222AL
V.22, V.21, Bell 212A, 103
Single-Chip Modem
5
PARALLEL MICROPROCESSOR INTERFACE
(continued)
NAME
28-PIN
TYPE
DESCRIPTION
WR
13
I
Write. A low on this informs the 73K222AL 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 low.
SERIAL MICROPROCESSOR INTERFACE
A0-A2
-
I
Register Address Selection. These lines carry register addresses and
should be valid during any read or write operation.
DATA
-
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
-
I
Read. A low on this input informs the 73K222AL 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
-
I
Write. A low on this input informs the 73K222AL 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
DATA and AD0, AD1 and AD2 become the address only. See timing diagrams on page 20.
相關(guān)PDF資料
PDF描述
73K222AU-IH Single-Chip Modem Modem with UART
73K222AU-IP Single-Chip Modem Modem with UART
73K222BL V.22, V.21, Bell 212A,Bell 103 Single-Chip Modem with Integrated Hybrid(V.22, V.21, Bell 212A,Bell 103,帶混合電路的單片Modem)
73K224BL V.22bis/V.22/V.21/Bell 212A/103 Single-Chip Modem w/ Integrated Hybrid(V.22bis/V.22/V.21/Bell 212A/103單片Modem w/ 集成混合電路)
73K224L V.22bis/V.22/V.21/ Bell 212A/Bell 103 Single-Chip Modem
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
73K222AU-IH 制造商:TDK 制造商全稱:TDK Electronics 功能描述:Single-Chip Modem Modem with UART
73K222AU-IP 制造商:TDK 制造商全稱:TDK Electronics 功能描述:Single-Chip Modem Modem with UART
73K222BL 制造商:TERIDIAN 制造商全稱:TERIDIAN 功能描述:Single-Chip Modem
73K222BL-IGT 制造商:TDK 制造商全稱:TDK Electronics 功能描述:V.22, V.21, Bell 212A, Bell 103 Single-Chip Modem with Integrated Hybrid
73K222BL-IH 制造商:TDK 功能描述:73K222BL-IH
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