參數(shù)資料
型號: 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): 14/64頁
文件大?。?/td> 2573K
代理商: MCP2150
MCP2120/MCP2150 USER’S GUIDE
DS51246A-page 10
2001 Microchip Technology Inc.
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 pin low to cause a change
of baud rate to occur.
Figure 2.4: MCP2120 UART
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
PC UART configuration for Hardware/Software Baud mode
Software Baud Selection
Hardware Baud Selection
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