MCP2120/MCP2150 Developer’s Kit User’s Guide
Figure 2-4 shows jumpers JP4 and JP5 and their state. For the tutorial, both of these
jumpers are required to be open.
FIGURE 2-4:
MCP2120 UART MODE AND ENABLE MODE
R9
D3
D6 D2
U2
C11
R15
C18
C6
R3
J5
C10
U4
R4
D4
C15
CR1
C4
C7
JP4
( MCP2120 )
Open=Enabled
R5
R10 R11
Component
D1
C12
C13
C14
C8
R8
R7
R6
Transceiver
J6 J7
R12
D5
JP5 R1
C9
R14
Q1
R2
U3
C2
JP3:JP1
000 =F OSC /768
001 =F OSC /384
Integrated
Transceiver
U6
J2
C5
C1
U1
C3
010 =F OSC /192
011 =F OSC /128
100 =F OSC /64
111 =S/W Baud
Open=0
R13
C16
J4
MCP2120 Developer’s Board
02-01608 Rev. 1
J1
J3
+5V
GND
DS51246C-page 24
PC UART configuration for
Hardware/Software Baud mode
Hardware Baud Selection
MCP2120 Enable/Disable
Enabled
? 2005 Microchip Technology Inc.
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