參數(shù)資料
型號: PSM2000ACD
英文描述: PSM2000ACD Webchip Module(網(wǎng)絡(luò)通信控制器模塊(由PS2000ACQ,RS-232驅(qū)動器,RS*485驅(qū)動器及嵌入式Modem構(gòu)成))
中文描述: PSM2000ACD Webchip模塊(網(wǎng)絡(luò)通信控制器模塊(由PS2000ACQ和RS - 232驅(qū)動器,恏巴* 485驅(qū)動器及嵌入式調(diào)制解調(diào)器構(gòu)成))
文件頁數(shù): 8/17頁
文件大?。?/td> 404K
代理商: PSM2000ACD
PSM2000ACD WebChip Module Datasheet
Doc. Number:
INHD002
Version 1.0
8/20/2001
5.2
Pin Descriptions
The pin descriptions for PSM2000ACD are shown in Table 1.
Table 1 Pin Descriptions
Name
Pin
I/O/P
note 1
Description
GND
1
P
Supply ground
VCC
2
P
Positive supply
RESET
3
I
Active high 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
PS2000ACD data exchange request signal output
DO
5
O
PS2000ACD SPI serial data output
CLK
6
I
PS2000ACD SPI serial clock input
DI
7
I
PS2000ACD SPI serial data input
/CS
8
I
PS2000ACD chip select input, it is active low
RSI
9
I
PS2000ACD serial data receiving pin
note 2
RSO1
10
O
Serial data output of RS-232 receiver
note 2
RSO3
11
O
Serial data output of embedded Modem
note 2
RSO2
12
O
Serial data output of RS-485 receiver
note 2
CDI
13
I
DCD receiving pin of PS2000ACD
note 2
CDO1
14
O
DCD output of RS-232 receiver
note 2
CDO2
15
O
DCD output of embedded Modem
note 2
PN1
16
I/O
Telephone line pin 1
PN1
17
I/O
Telephone line pin 1
PN2
18
I/O
Telephone line pin 2
PN2
19
I/O
Telephone line pin 2
NC
20
Reserved, unused
A
21
I/O
Terminal A of RS-485 interface circuit
B
22
I/O
Terminal B of RS-485 interface circuit
DTR
23
O
Data terminal ready output RS-232 level
DCD
24
I
Data carrier detect input RS-232 level
RXD
25
I
Receive data pin RS-232 level
TXD
26
O
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
RSI
PIN DIRECTLY WHEN
RS-232
COMMUNICATION MODE IS USED
.
RSO2 pin must be connected to RSI pin directly when RS-485 communication mode
P&S DataCom Corporation
Page
8
of
17
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