MCP2120/MCP2150 USER鈥橲 GUIDE
Figure 3.4 shows jumpers JP4 and JP5 and their state. For the tutorial, both
of these jumpers are required to be open.
Figure 3.4: MCP2120 UART Mode and Enable Mode
R9
D3
D6 D2
C17
C11
U2
C18
C6
R3
Y1
J5
CR1
D4
C15
C4
C7
C12
C13
C14
JP5 R1
Q1
U3
C9
C5
C1
R14
R2
C2
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
MODE
RTS
Integrated
Transceiver
R13
C16
U6
C8
C10
R4
JP4
R10
R5
R11
D1
D5
R12
U4
R15
U5
(MCP2120)
Open=Enabled
R8
R7
R6
Component
Transceiver
J7
J6
C3
DB9
RX
J2
MCP2120
Developer鈥檚 Board
02-01608 Rev. 1
TX
J4
J1
Header
U1
J3
+5V
GND
PC UART configuration for
Hardware/Software Baud mode
Hardware Baud Selection
MCP2120 Enable/Disable
Enabled
DS51246A-page 24
錚?/div>
2001 Microchip Technology Inc.
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