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參數資料
| 型號： | MR82510 |
| 廠商： | Intel Corp. |
| 英文描述： | ASYNCHRONOUS SERIAL CONTROLLER |
| 中文描述： | 異步串行控制器 |
| 文件頁數： | 3/40頁 |
| 文件大小： | 463K |
| 代理商： | MR82510 |
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M82510
M82510 PINOUT DEFINITION
(Continued)
Symbol
Pin
No.
Type
Name and Description
TXD
6
O
TRANSMIT DATA:
Serial data is transmitted via this output pin starting at the
Least Significant bit.
RXD
13
I
RECEIVE DATA:
Serial data is received on this input pin starting at the Least
Significant bit.
RI/SCLK
10
I
MULTIFUNCTION:
This is a dual function pin which can be configured to one of
the following functions. RI - Ring Indicator - Input, active low. This is a general
purpose input pin accessible by the CPU. SCLK - This input pin may serve as a
source for the internal serial clock(s), RxClk and/or TxClk. See Figure 12, BRG
sources and outputs.
DTR/TB
15
O
MULTIFUNCTION:
This is a dual function pin which may be configured to one of
the following functions. DTR - Data Terminal Ready. Output, active low. This is a
general purpose output pin controlled by the CPU. TB - This pin outputs the
BRGB output signal when configured as either a clock generator or as a timer.
When BRGB is configured as a timer this pin outputs a ‘‘timer expired pulse.’’
When BRGB is configured as a clock generator it outputs the BRGB output
clock.
DSR/TA/
OUT0
11
I/O
MULTIFUNCTION:
This is a multifunction pin which may be configured to one of
the following functions. DSR - Data Set Ready. Input, active low. This is a
general purpose input pin accessible by the CPU. TA - This pin is similar in
function to pin TB except it outputs the signals from BRGA instead of BRGB.
OUT0 - Output pin. This is a general purpose output pin controlled by the CPU.
RTS
16
O
REQUEST TO SEND:
Output pin, active low. This is a general purpose output
pin controlled by the CPU. In addition, in automatic transmission mode this pin,
along with CTS, controls the transmission of data. (See Transmit modes for
further detail.) During hardware reset this pin is an input. It is used to determine
the System Clock Mode. (See System Clock Generation for further detail.)
CTS
14
I
CLEAR TO SEND:
Input pin, active low. In automatic transmission mode it
directly controls the Transmit Machine. (See transmission mode for further
details.) This pin can be used as a General Purpose Input.
DCD/ICLK/
OUT1
12
I/O
MULTIFUNCTION:
This is a multifunction pin which may be configured to one of
the following functions. DCD - Data Carrier Detected. Input pin, active low. This
is a general purpose input pin accessible by the CPU. ICLK - This pin is the
output of the internal system clock. OUT1 - General purpose output pin.
Controlled by the CPU.
V
SS
7
P
Ground
V
CC
21
P
Power:
a
5V Supply
Table 1. Multifunction Pins
Pin
Y
I/O
Timing
Modem
8
*
OUT2
X2
D
9
D
*
CLK/X1
D
10
D
SCLK
*
RI
11
OUT0
TA
*
DSR
12
OUT1
ICLK
*
DCD
14
D
D
*
CTS
15
D
TB
*
DTR
16
D
D
*
RTS
*
Default
3
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PDF描述 |
|---|---|
| MR8251A | PROGRAMMABLE COMMUNICATION INTERFACE |
| MR851G | Axial Lead Fast Recovery Rectifiers |
| MR851RL | Axial Lead Fast Recovery Rectifiers |
| MR851RLG | Axial Lead Fast Recovery Rectifiers |
| MR852G | Axial Lead Fast Recovery Rectifiers |
相關代理商/技術參數 |
參數描述 |
|---|---|
| MR82510/B | 制造商:Rochester Electronics LLC 功能描述: |
| MR8251A | 制造商:Intel 功能描述: |
| MR8251A/B | 制造商:Rochester Electronics LLC 功能描述: |
| MR8254/B | 制造商:Rochester Electronics LLC 功能描述: |
| MR8254/R | 制造商:Rochester Electronics LLC 功能描述:- Bulk |
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