參數(shù)資料
型號(hào): MCP2150
廠商: Microchip Technology Inc.
英文描述: DEVELOPER’S KIT USER’S GUIDE
中文描述: 開發(fā)人員包用戶指南
文件頁數(shù): 26/64頁
文件大?。?/td> 2573K
代理商: MCP2150
MCP2120/MCP2150 USER’S GUIDE
DS51246A-page 22
2001 Microchip Technology Inc.
3.4 Hardware Setup
3.4.1.
Oscillator
The crystal oscillator has pin receptacles to allow the changing of the
MCP2120 oscillator frequency. For the tutorial, we will be using a crystal
frequency of 7.3728 MHz. This crystal frequency is shipped in the kit.
3.4.2.
Board Jumpers
The MCP2120 and MCP2150 Developer’s Boards may use one of two host
interfaces, the DB-9 interface to connect to a PC, or the header to connect to
a controller board.
For the tutorial, the host signal will come from the DB-9 connector and the
infrared data signals will interface to the Integrated Optical Transceiver.
Figure 3.2 shows how the two 3-pin jumpers need to be connected for this
configuration.
Figure 3.2: MCP2120 Developer’s Board Component Layout
U
J5
D4
C15
C12
C13
C14
C9
C5
C1
J2
MCP2120
Developer’s Board
02-01608 Rev. 1
U1
D
J1
J4
R14
CR1
C4
C7
C8
R1
Q1
JP5
U3
R2
C2
C3
H
R
T
M
R
J3
+5V
GND
R13
C16
JP3:JP1
000
=F
OSC
/768
001
=F
OSC
/384
010
=F
OSC
/192
011
=F
OSC
/128
100
=F
OSC
/64
111
=S/W Baud
Open=0
Integrated
Transceiver
U6
R8
R7
R6
R4
JP4
(
MCP2120
)
Open=Enabled
R9
D3
Y
D6 D2
U2
C6
R3
C10
U4
R5
R11
R10
C
Component
Transceiver
J6
J7
R12
D1
D5
C18
R15
C11
These two jumpers select the
source of the Host signals.
J1 and J4
DB9 is source.
These two jumpers select the
optical transceiver logic. Both jumpers
should connect the same pin positions
Integrated Transceiver
J6 and J7
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