Microchip Technology Inc MCP2150-I-P, MCP2150-I-SO Datasheet
MCP2120/MCP2150
DEVELOPER’S KIT USER’S GUIDE
Information contained in this publication regarding device applications and the like is intended by way of suggestion
only. No representation or warranty is given and no liability is assumed by Microchip Technology Incorporated with
respect to the accuracy or use of such information. Use of Microchip’s products as critical components in life support
systems is not authorized except with express written approval by Microchip.
2001 Microchip Technology Incorporated. All rights reserved.
, MPLAB, and MXDEV are registered
The Microchip logo, name, PIC, PICmicro, PICSTART, PRO MATE, K
trademarks of Microchip Technology Incorporated in the U.S.A. and other countries. microID, and Smart Serial are
trademarks of Microchip Technology in the U.S.A. and other countries.
All product/company trademarks mentioned herein are the property of their respective companies.
EELOQ
2001 Microchip Technology Inc. DS51246A
MCP2120/2150 User’s Guide
NOTES:
DS51246A 2001 Microchip Technology Inc.
MCP2120/MCP2150
12
Table of Contents
Chapter 1. Introduction
1.1 Welcome ......................................................................................... 1
1.2 MCP2120/MCP2150 Developer’s Kit User’s Guide ........................ 2
1.3 Sample Devices .............................................................................. 3
1.4 Reference Documents .................................................................... 3
1.5 Other Related Documents .............................................................. 3
Chapter 2. Getting Started
2.1 Introduction ..................................................................................... 5
2.2 Highlights ........................................................................................ 5
2.3 Developer Board Features .............................................................. 6
2.4 System Configurations .................................................................. 17
USER’S GUIDE
2.5 PC Requirements ......................................................................... 20
Chapter 3. MCP2120 Tutorial
3.1 Introduction ................................................................................... 21
3.2 Highlights ...................................................................................... 21
3.3 MCP2120 Tutorial Setup .............................................................. 21
3.4 Hardware Setup ............................................................................ 22
3.5 Setting Up the Terminal Program ................................................. 25
3.6 Transmitting/Receiving Data ......................................................... 35
Chapter 4. MCP2150 Tutorial
4.1 Introduction ................................................................................... 39
4.2 Highlights ...................................................................................... 39
4.3 MCP2150 Tutorial ......................................................................... 39
Chapter 5. Using a PICDEM™ 1 or PICDEM™ 2 Board as Host
5.1 Using the PICDEM 1 Board .......................................................... 41
5.2 Using the PICDEM 2 Board .......................................................... 43
2001 Microchip Technology Inc. DS51246A-page iii
MCP2120/MCP2150 USER’S GUIDE
Appendix A. Hardware Detail
A.1 Power Supply ................................................................................45
A.2 Power Indicator .............................................................................45
A.3 RS-232 Serial Port ........................................................................45
A.4 Jumpers ........................................................................................46
A.5 Oscillator Options ..........................................................................48
A.6 Board Layout .................................................................................49
A.7 Schematics ....................................................................................50
Revision History ........................................................................................ 53
Index ..........................................................................................................55
Worldwide Sales and Service ......................................................................0
DS51246A-page iv 2001 Microchip Technology Inc.
MCP2120/MCP2150
12
1.1 Welcome
USER’S GUIDE
Chapter 1. Introduction
Thank you for purchasing the MCP2120/MCP2150 Developer’s Kit from
Microchip Technology Inc. The MCP2120/MCP2150 Developer’s Kit
demonstrates the capabilities of the MCP2120 and MCP2150 infrared
communication products.
The MCP2120 Developer’s Board and the MCP2150 Developer’s Board can
be connected to either a PC via the DB9 connector, or to another system
(such as a PICDEM 2 board) via the four pin header.
The MCP2120/MCP2150 Developer’s Kit comes with the following:
1. Two MCP2120 Developer Boards.
2. One MCP2150 Developer Board.
3. Two serial cables.
4. One 9V power supply, with power cord.
5. One pair 18” (45 cm) power jumper cables.
6. Sample kit (one MCP2120 device and one MCP2150 device)–Not
shown.
7. MCP2120/MCP2150 Developer’s Kit User’s Guide (This document)–Not
shown.
If you are missing any part of the kit, please contact your nearest Microchip
sales office listed in the back of this publication for help.
Figure 1.1: MCP2120/MCP2150 Developer’s Kit
4
3
3
5
4
2
1
1
2001 Microchip Technology Inc. DS51246A-page 1
2
MCP2120/MCP2150 USER’S GUIDE
1.2 MCP2120/MCP2150 Developer’s Kit User’s Guide
This document describes the MCP2120/MCP2150 Developer’s Kit and
tutorials, giving the user a brief overview of Microchip’s MCP2120 and
MCP2150 family of infrared communication products. Detailed information on
the individual device may be found in the device’s respective data sheet.
Detailed information on the PICDEM 2 development board may be found in
the PICDEM 2 User’s Guide (DS30374).
Chapter 1: Introduction – This chapter introduces the MCP2120/MCP2150
Developer’s Kit, lists the components in the kit, and lists related
documentation.
Chapter 2: Getting Started – This chapter gives an overview of the MCP2120
and MCP2150 Developer’s Boards, the hardware features of each
Developer’s Board, the system configurations that can be used to
demonstrate the MCP2120 and MCP2150 devices, and the PC requirements.
Chapter 3: MCP2120 Tutorial – This chapter provides a detailed description
of the steps to get the MCP2120 Developer’s board operating. These steps
include the configuration of the Developer’s boards and the Terminal
Emulation program (Hyperterminal) used on the PC.
Chapter 4: MCP2150 Tutorial – This chapter provides a detailed description
of the steps to get the MCP2150 Developer’s board operating. These steps
include the configuration of the Developer’s boards, the Terminal Emulation
program (Hyperterminal) used on the PC, and the installation and
configuration of the PC IrDA standard drivers.
Chapter 5: Using PICDEM 1 or PICDEM 2 Board as Host. This chapter
discusses the use of the PICDEM boards as a demonstration platform as a
Host Controller for an MCP2120 Developer’s Board or an MCP2150
Developer’s Board. This chapter makes reference to Application Notes which
contain demonstration code.
Appendix A: Hardware Description: This appendix describes in detail the
hardware of the MCP2120 Developer’s board and MCP2150 Developer’s
board. This includes the component layout of each board (silkscreen) and the
schematic of each board.
Revision History: This covers the major changes to the document between
the revisions.
Index: This lists the pages where major topics are located.
DS51246A-page 2 2001 Microchip Technology Inc.
1.3 Sample Devices
Each kit comes with one MCP2120 device and one MCP2150 device. This
allows a prototype system to be developed that can be used with an
MCP2120 Developer’s Board or an MCP2150 Developer’s Board.
1.4 Reference Documents
Reference documents may be obtained by contacting your nearest Microchip
sales office (listed in the back of this document) or by downloading via the
Microchip website (www.microchip.com).
• MCP2120 Data Sheet, DS21618
• MCP2150 Data Sheet, DS21655
• AN756, “Using the MCP2120 for Infrared Communication”, DS00756
• AN758,
tivity”, DS00758
• TB046, “Connecting the MCP2150 to the Psion Operating System”,
DS91046
• TB047,
tem”
• TB048, “Connecting the MCP2150 to the Windows
tem”, DS91048
“Using the MCP2150 to Add IrDA
“Connecting the MCP2150 to the Windows
, DS91047
Introduction
®
Standard Wireless Connec-
®
CE Operating Sys-
®
Operating Sys-
• TB049, “Connecting the MCP2150 to the Palm™ Operating System”,
DS91049
1.5 Other Related Documents
• MPASM User’s Guide with MPLINK™ Linker and MPLIB™ Library,
DS33014
•PRO MATE
•PICSTART
• MPLAB
• MPLAB
• Microchip’s Third Party Guide, DS00104
IrDA is a registered trademark of the Infrared Data Association.
®
II User’s Guide, DS30082
®
Plus User’s Guide, DS51028
®
ICE User’s Guide, DS51159
®
ICD User’s Guide, DS51184
2001 Microchip Technology Inc. DS51246A-page 3
MCP2120/MCP2150 USER’S GUIDE
NOTES:
DS51246A-page 4 2001 Microchip Technology Inc.
MCP2120/MCP2150
12
Chapter 2. Getting Started
2.1 Introduction
This chapter covers an overview of the MCP2120 and MCP2150 Developer’s
Boards features, the system configurations that they can be used in, and the
system requirements for the tutorials.
2.2 Highlights
Topics covered in this chapter
USER’S GUIDE
• MCP2120 Developer’s Board
• MCP2150 Developer’s Board
• System Configurations
• PC Requirements
2001 Microchip Technology Inc. DS51246A-page 5
MCP2120/MCP2150 USER’S GUIDE
2.3 Developer Board Features
2.3.1. MCP2120 Developer’s Board
The MCP2120 Developer’s Board, as shown in Figure 2.1, has the following
hardware features:
1. On-board +5V regulator for direct input from 9V, 750 mA AC/DC wall
adapter or 9V battery.
2. Hooks for a +5V, 750 mA regulated DC supply.
3. DB-9 connector and associated hardware for direct connection to
MCP2120 UART (DB-9 interface requires RS-232 signal levels).
4. Four-pin header connection to UART interface (Header requires TTL
level signals).
5. Two jumpers to select source of UART signals. Either DB-9 connector or
the four-pin header.
6. Three jumpers to select desired baud rate.
7. Green power-on indicator LED.
8. Two IR Transceiver options (two jumpers select transceiver).
9. Jumper to disable MCP2120 device operation.
10. Hardware and Software Baud selection.
11. Jumper for Software Baud control when using RS-232C interface.
12. Socketed crystal.
Note: A schematic of the MCP2120 Developer’s Board is shown in
Figure A.5
DS51246A-page 6 2001 Microchip Technology Inc.
Getting Started
Figure 2.1: MCP2120 Developer’s Board Hardware
JP5
R14
DB9
C4
C7
C8
J4
J1
7
R1
Q1
R2 C2
R9 D3
Y1
U3
C3
Header
JP3:JP1
000=F
001=F
010=F
011=F
100=F
111=S/W Baud
Open=0
D6 D2
JP4
R4
(MCP2120)
Open=Enabled
R8 R7 R6
/768
OSC
/384
OSC
/192
OSC
/128
OSC
/64
OSC
RXTXMODE
RTS
J3
45 6
1
U5
J5
D4
3
C13
C9
C5
C1
J2
MCP2120 Developer’s Board
02-01608 Rev. 1
C15
C12
CR1
C14
U1
11
U2
C17
C6
R3
C10
Component
Transceiver
J6
Integrated
Transceiver
R13
C16
GND
+5V
12
U4
R5
9
C11
R15
C18
R11R10
D1
D5
J7
R12
8
U6
2
10
2001 Microchip Technology Inc. DS51246A-page 7
MCP2120/MCP2150 USER’S GUIDE
2.3.1.1 Selecting UART Source and Optical Transceiver
Interface
Figure 2.2 shows two pairs of jumpers used to route signals to and from the
MCP2120.
Jumpers J1 and J4 are used to determine the source of the signals used by
the UART interface. When the header has the pins closest to the “DB9” label
jumpered to the center pin, the DB9 is the source of the UART signal. When
the header has the pins closest to the “Header” label jumpered to the center
pin, the four-pin header is the source of the UART signal.
Jumpers J6 and J7 are used to determine the source and destination of the
infrared data signals used by the interface between the MCP2120 and Optical
Transceiver. When the header has the pins closest to the “Integrated
Transceiver” label jumpered to the center pin, the integrated transceiver is
used. When the header has the pins closest to the “Component Transceiver”
label jumpered to the center pin, the component transceiver logic is used.
Figure 2.2: MCP2120 Selecting Sources
U5
J5
D4
C13
C9
C5
C1
J2
MCP2120 Developer’s Board
02-01608 Rev. 1
C15
C12
CR1
C14
U1
JP5
R14
DB9
C4
C7
C8
R1
J4
J1
Q1
U3
R2 C2
C3
R9 D3
Y1
R8 R7 R6
JP3:JP1
000=F
001=F
010=F
011=F
100=F
111=S/W Baud
Open=0
RXTXMODE
Header
D6 D2
JP4
R4
(MCP2120)
Open=Enabled
OSC/768
OSC/384
OSC/192
OSC/128
/64
OSC
RTS
J3
U2
C17
C10
Component
Transceiver
J6
Integrated
Transceiver
+5V
R3
R13
C16
C11
R15
C6
GND
C18
U4
R5
R11R10
D1
D5
J7
R12
U6
These two jumpers select the
source of the Host signals.
J1 and J4
Header is source.
These two jumpers select the
optical transceiver logic. Both jumpers
should connect the same pin positions
J6 and J7
Component Transceiver
DB9 is source.
Integrated Transceiver
DS51246A-page 8 2001 Microchip Technology Inc.
Getting Started
2.3.1.2 Selecting Baud Rate
Figure 2.3 shows the three Baud Rate Select Jumpers (JP3:JP1) and the
baud rate formula that is specified (baud rate dependant on MCP2120
operational frequency). Table 2.1 shows the baud rates for some crystal
frequencies.
Figure 2.3: MCP2120 Baud Rate
R15C11
C18
U4
R5
R11
D1
D5
J7
R12
U6
U5
J5
D4
C13
C9
C5
C1
J2
MCP2120 Developer’s Board
02-01608 Rev. 1
C15
C12
CR1
C14
U1
JP5
R14
C4
C7
C8
R1
Q1
U3
R2 C2
C3
J4
DB9
J1
These three jumpers select the baud rate:
JP3:JP2:JP1
JP3:JP2:JP1
R9 D3
Y1
R8 R7 R6
JP3:JP1
000=F
001=F
010=F
011=F
100=F
111=S/W Baud
Open=0
RXTXMODE
Header
D6 D2
JP4
R4
(MCP2120)
Open=Enabled
OSC/768
OSC/384
OSC/192
OSC/128
OSC/64
RTS
J3
U2
C17
C10
R10
Component
Transceiver
J6
Integrated
Transceiver
+5V
C6
R3
R13
C16
GND
F
F
F
OSC
OSC
OSC
/768
/384
/192
F
/128
OSC
F
/64
OSC
Software Baud Mode
Table: 2.1 Hardware Baud Rate Selection vs. Frequency
OSC
F
Frequency (MHz)
BAUD2:BAUD0
000
(1)
0.6144
2.000 3.6864 4.9152 7.3728 14.7456
800 2604 4800 6400 9600 19200 26042 F
001 1600 5208 9600 12800 19200 38400 52083 F
010
011
100
Note 1:
Note 2:
An external clock is recommended for frequencies below 2 MHz.
For frequencies above 7.5 MHz, the TXIR pulse width (MCP2120 Data Sheet, Electrical Specification, parameter
3200 10417 19200 25600 38400 78600 104167 F
4800 15625 28800 38400 57600 115200 156250 F
9600 31250 57600 78600 115200 230400 312500 F
IR121) will be shorter than the minimum pulse width of 1.6 µs in the IrDA standard specification.
2001 Microchip Technology Inc. DS51246A-page 9
(2)
20.000
(2)
Bit Rate
OSC
OSC
OSC
OSC
OSC
/ 768
/ 384
/ 192
/ 128
/ 64
MCP2120/MCP2150 USER’S GUIDE
2.3.1.3 UART Mode
Figure 2.4 shows the jumper which determines if the MCP2120 Developer’s
Board is to be used in Hardware Baud operation, or Software Baud operation.
When in Software Baud operation, an additional signal is required, Request
To Send (RTS), which is used to drive the RESET
of baud rate to occur.
Figure 2.4: MCP2120 UART
pin low to cause a change
U5
J5
C15
D4
C12
C13
C9
C5
C1
J2
MCP2120 Developer’s Board
02-01608 Rev. 1
CR1
C14
U1
JP5
R14
DB9
R9 D3
C4
C7
C8
R1
J4
J1
Y1
Q1
U3
JP3:JP1
000=F
C2
R2
001=F
010=F
011=F
100=F
C3
111=S/W Baud
Open=0
Header
D6 D2
JP4
R4
(MCP2120)
Open=Enabled
R8 R7 R6
OSC/768
OSC/384
OSC/192
/128
OSC
/64
OSC
RXTXMODE
RTS
C17
J3
PC UART configuration for Hardware/Software Baud mode
Hardware Baud Selection
Software Baud Selection
U2
C6
R3
C10
R10
Component
Transceiver
J6
Integrated
Transceiver
R13
C16
GND
+5V
R15C11
C18
U4
R5
R11
D1
D5
J7
R12
U6
DS51246A-page 10 2001 Microchip Technology Inc.
Getting Started
2.3.1.4 Disabling the MCP2120
Figure 2.5 shows the jumper, JP4, which will enable or disable the MCP2120
device. When the MCP2120 is disabled, the device will consume less current.
Figure 2.5: MCP2120 Enable/Disable
U5
J5
C15
D4
C12
C13
C9
C5
C1
J2
MCP2120 Developer’s Board
02-01608 Rev. 1
MCP2120 Enable/Disable
Enabled
Disabled
CR1
C14
U1
JP5
R14
R9 D3
C4
C7
C8
R1
J4
DB9
J1
Y1
Q1
U3
JP3:JP1
000=F
C2
R2
001=F
010=F
011=F
100=F
C3
111=S/W Baud
Open=0
Header
D6 D2
JP4
R4
(MCP2120)
Open=Enabled
R8 R7 R6
OSC/768
OSC/384
OSC/192
/128
OSC
/64
OSC
RXTXMODE
RTS
J3
U2
C17
C10
R10
Component
Transceiver
J6
Integrated
Transceiver
+5V
C6
R3
R13
C16
GND
R15C11
C18
U4
R5
R11
D1
D5
J7
R12
U6
In most cases, this jumper will be open. It may be closed to test system
operation when the MCP2120 is disabled. The Host Controller board may
control the operation of the MCP2120 by connecting a signal to the JP4
header as shown in Figure 2.6.
Figure 2.6: Host Controller Disabling the MCP2120
MCP2120 Developer’s Board
MCP2120
JP4
EN
2001 Microchip Technology Inc. DS51246A-page 11
Host Controller
I/O Pin
(High or Hi Impedance = Enabled
Low = Disabled)
MCP2120/MCP2150 USER’S GUIDE
2.3.2. MCP2150 Developer’s Board
The MCP2150 Developer’s Board, as shown in Figure 2.7, has the following
hardware features:
1. On-board +5V regulator for direct input from 9V, 750 mA AC/DC wall
adapter or 9V battery.
2. Hooks for a +5V, 750 mA regulated DC supply.
3. DB-9 connector and associated hardware for direct connection to
MCP2150 UART (DB-9 interface requires RS-232 signal levels).
4. Ten-pin header connection to UART interface (Header requires TTL
level signals).
5. Three jumpers to select source of UART signals. Either DB-9 connector
or the eight-pin header.
6. Two jumpers to select desired baud rate.
7. Green power-on indicator LED.
8. Green LED for Carrier Detect.
9. Two IR Transceiver options (two jumpers select transceiver).
10. Jumper to disable MCP2150 device operation.
11. Hardware Baud selection.
Note: A schematic of the MCP2150 Developer’s Board is shown in
Figure A.6
DS51246A-page 12 2001 Microchip Technology Inc.
Figure 2.7: MCP2150 Board Hardware
Getting Started
U2
7
Power
Y1
Header
J1
C8
C7
Open=Enabled
JP2 JP1 BAUD
0
0
1
1
TXRXRTS
D3
JP3
R2
(MCP2150)
R4 R3
JP2 JP1
9600
0
19200
1
57600
0
115200
1
CTS
DTR
R7
DSRCDRI
45 6
1
BT1
U5
J6
3
J5
C17
D4
CR1
C14
C15
C1 C4
U1
C3
C10
MCP2150 Dev Board
02-01609 Rev. 1
C16
C2
CD
D7
C12
DB9
J4
J3
J2
8
10
C5
U4
R6 C13
R5
Component
Transceiver
J8
J7
Integrated
Transceiver
R11 C16
R13
GND
+5
+5V
R8
R9
C11
GND
D2
R14
R10
D5
U6
R1
C9
U3
C6
D1
D6
9
2
11
2001 Microchip Technology Inc. DS51246A-page 13
MCP2120/MCP2150 USER’S GUIDE
2.3.2.1 Selecting UART Source and Optical Transceiver
Interface
Figure 2.8 shows two sets of jumpers used to route signals to and from the
MCP2150.
Jumpers J2, J3 and J4 are used to determine the source of the signals used
by the UART interface. When the header has the pins closest to the “DB9”
label jumpered to the center pin, the DB9 is the source of the UART signal.
When the header has the pins closest to the “Header” label jumpered to the
center pin, the four-pin header is the source of the UART signal.
Jumpers J7 and J8 are used to determine the source and destination of the
IrDA signals used by the interface between the MCP2150 and Optical
Transceiver. When the header has the pins closest to the “Integrated
Transceiver” label jumpered to the center pin, the integrated transceiver is
used. When the header has the pins closest to the “Component Transceiver”
label jumpered to the center pin, the component transceiver logic is used.
Figure 2.8: MCP2150 Selecting Sources
BT1
U5
J6
J5
MCP2150 Dev Board
02-01609 Rev. 1
C17
D4
C14
C15
C1 C4
C3
C10
CR1
U1
C16
C2
CD
D7
DB9
C12
U2
J4
J3
J2
Y1
Header
J1
Power
C8
D3
C7
JP3
R2
(MCP2150)
Open=Enabled
R4 R3
JP2 JP1
JP2 JP1 BAUD
0
0
9600
0
1
19200
1
0
57600
1
1
115200
TXRXRTS
CTS
DTR
R7
DSRCDRI
C5
U4
R5
R6
Component
Transceiver
J8
J7
Integrated
Transceiver
R11 C16
R13
GND
+5
+5V
R8
R9
C11
D2D5
GND
C13
R14
R10
U6
C6
R1
C9
U3
D1
D6
These three jumpers select the
source of the Host signals.
J2, J3 and J4
These two jumpers select the
optical transceiver logic. Both jumpers
should connect the same pin positions
J7 and J8
Header is source.
Component Transceiver
DB9 is source.
DS51246A-page 14 2001 Microchip Technology Inc.
Integrated Transceiver
Getting Started
2.3.2.2 Selecting Baud Rate
Figure 2.9 shows the two Baud Rate Select jumpers (JP2:JP1) and the baud
rate. Table 2.2 shows the baud rates for some crystal frequencies.
Figure 2.9: MCP2150 Baud Rate
BT1
U5
J6
J5
C17
D4
CR1
C14
C15
C1 C4
C3
C10
MCP2150 Dev Board
02-01609 Rev. 1
U1
C16
C2
CD
D7
DB9
C12
Y1
U2
J4
J3
J2
Header
J1
These three jumpers select the Baud Rate
JP2:JP1
JP2:JP1
9600
Power
C8
D3
C7
JP3
R2
(MCP2150)
Open=Enabled
R4 R3
JP2 JP1
JP2 JP1 BAUD
TXRXRTS
9600
0
0
19200
1
0
57600
0
1
115200
1
1
CTS
DTR
57600
R7
DSRCDRI
C5
U4
R6 C13
R5
Component
Transceiver
J8J7
Integrated
Transceiver
R11 C16
R13
GND
+5
+5V
R8
R9
C11
GND
D2D5
R14
R10
U6
C6
R1
C9
U3
D1
D6
19200
115200
Table: 2.2 Serial Baud Rate Selection vs. Frequency
BAUD1:BAUD0 Baud Rate @ 11.0592 MHz Bit Rate
OSC
OSC
OSC
/ 1152
/ 576
/ 192
/ 96
00 9600 FOSC
01 19200 F
10 57600 F
11 115200 F
2001 Microchip Technology Inc. DS51246A-page 15
MCP2120/MCP2150 USER’S GUIDE
2.3.2.3 Disabling the MCP2150
Figure 2.10 shows the jumper (JP3) which will enable or disable the
MCP2150 device. When the MCP2150 is disabled, the device will consume
less current.
Figure 2.10: MCP2150 Enable/Disable
BT1
U5
J6
J5
C17
D4
CR1
C14
C15
C1 C4
C3
C10
MCP2150 Dev Board
02-01609 Rev. 1
C16
C2
U1
MCP2150 Enable/Disable
Enabled
Disabled
CD
D7
DB9
C12
R7
DSRCDRI
C5
U4
R5
R6 C13
Component
Transceiver
J8
J7
Integrated
Transceiver
R11 C16
R13
GND
+5
+5V
R8
R9
C11
Power
C8
D3
C7
Y1
U2
JP2 JP1 BAUD
J4
J3
J2
TXRXRTS
Header
J1
JP3
R2
(MCP2150)
Open=Enabled
R4 R3
JP2 JP1
9600
0
0
19200
1
0
57600
0
1
115200
1
1
CTS
DTR
D2
GND
R14
R10
D5
U6
C6
R1
C9
U3
D1
D6
In most cases, this jumper will be open. It may be closed to test system
operation when the MCP2150 is disabled. The Host Controller board may
control the operation of the MCP2150 by connecting a signal to the JP3
header as shown in Figure 2.11.
Figure 2.11: Host Controller Disabling the MCP2150
MCP2150 Developer’s Board
MCP2150
JP4
EN
DS51246A-page 16 2001 Microchip Technology Inc.
Host Controller
I/O Pin
(High or Hi Impedance = Enabled
Low = Disabled)
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