參數(shù)資料
型號(hào): PSM2001ACD
英文描述: PSM2001ACD Webchip Module(網(wǎng)絡(luò)通信控制器模塊(由PS2000ACQ,RS-232驅(qū)動(dòng)器,RS*485驅(qū)動(dòng)器構(gòu)成))
中文描述: PSM2001ACD Webchip模塊(網(wǎng)絡(luò)通信控制器模塊(由PS2000ACQ和RS - 232驅(qū)動(dòng)器,恏巴* 485驅(qū)動(dòng)器構(gòu)成))
文件頁(yè)數(shù): 8/17頁(yè)
文件大?。?/td> 385K
代理商: PSM2001ACD
PSM2001ACD WebChip Module Datasheet
Doc. Number:
INHD003
Version 1.0
8/20/2001
5.2
Pin Descriptions
The pin descriptions of PSM2001ACD are shown in the Table 1.
Table 1 Pin Descriptions
Name
Pin
I/O/P
note 1
Description
GND
1
P
Ground
VCC
2
P
Power supply
RESET
3
I
High active reset input. To reset the module reliably, the
high level of the pin must be held over 50
μ
s at least.
/INT
4
O
PS2001ACD data exchange request signal output
DO
5
O
PS2001ACD SPI serial data output
CLK
6
I
PS2001ACD SPI serial clock input
DI
7
I
PS2001ACD SPI serial data input
/CS
8
I
PS2001ACD chip select input, it is low active
RSI
9
I
PS2001ACD serial data receiving pin
note 2
RSO1
10
O
Serial data output of RS-232 receiver
note 2
RSO2
11
O
Serial data output of RS-485 receiver
note 2
NC
12
Reserved, unused
B
13
I/O
Terminal B of RS-485 interface circuit
A
14
I/O
Terminal A of RS-485 interface circuit
DTR
15
O
Data terminal ready output RS-232 level
DCD
16
I
Data carrier detect input RS-232 level
TXD
17
O
Receive data pin RS-232 level
RXD
18
I
Transmit data pin RS-232 level
N
OTE
1:
O=
OUTPUT
I/O=
INPUT
/
OUTPUT
I=
INPUT
P =
POWER SUPPLY
N
OTE
2:
RSO1
PIN MUST BE CONNECTED TO THE
RSI
PIN DIRECTLY WHEN
RS-232
COMMUNICATION MODE OR STANDARD
M
ODEM COMMUNICATION MODE
IS USED
.
T
HE
RSO2
PIN MUST BE CONNECTED TO THE
RSI
PIN DIRECTLY WHEN
RS-485
COMMUNICATION MODE IS USED
.
P&S DataCom Corporation
Page
8
of
17
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