參數(shù)資料
型號(hào)： MCP2515-E/ST
廠商： Microchip Technology
文件頁數(shù)： 54/88頁
文件大小： 0K
描述： IC CAN CONTROLLER W/SPI 20TSSOP
標(biāo)準(zhǔn)包裝： 74
控制器類型： CAN 接口
接口： SPI 串行
電源電壓： 2.7 V ~ 5.5 V
電流 - 電源： 10mA
工作溫度： -40°C ~ 125°C
安裝類型： 表面貼裝
封裝/外殼： 20-TSSOP（0.173"，4.40mm 寬）
供應(yīng)商設(shè)備封裝： 20-TSSOP
包裝： 管件
配用： MCP2515DM-BM-ND - BOARD DEMO FOR MCP2515/51
MCP2515DM-PTPLS-ND - BOARD DAUGHTER PICTAIL MCP2515
MCP2515DM-PCTL-ND - BOARD DEMO FOR MCP2515
DV251001-ND - KIT DEVELOPMENT CAN MCP2510
MCP2515
DS21801F-page 58
2010 Microchip Technology Inc.
10.4
Loopback Mode
Loopback mode will allow internal transmission of
messages from the transmit buffers to the receive
buffers without actually transmitting messages on the
CAN bus. This mode can be used in system
development and testing.
In this mode, the ACK bit is ignored and the device will
allow incoming messages from itself just as if they were
coming from another node. The Loopback mode is a
silent mode, meaning no messages will be transmitted
while in this state (including error flags or acknowledge
signals). The TXCAN pin will be in a recessive state.
The filters and masks can be used to allow only
particular messages to be loaded into the receive
registers. The masks can be set to all zeros to provide
a mode that accepts all messages. The Loopback
mode is activated by setting the mode request bits in
the CANCTRL register.
10.5
Normal Mode
Normal mode is the standard operating mode of the
MCP2515. In this mode, the device actively monitors all
bus messages and generates acknowledge bits, error
frames, etc. This is also the only mode in which the
MCP2515 will transmit messages over the CAN bus.
REGISTER 10-1:
CANCTRL – CAN CONTROL REGISTER
(ADDRESS: XFh)
R/W-1
R/W-0
R/W-1
REQOP2
REQOP1
REQOP0
ABAT
OSM
CLKEN
CLKPRE1
CLKPRE0
bit 7
bit 0
Legend:
R = Readable bit
W = Writable bit
U = Unimplemented bit, read as ‘0’
-n = Value at POR
‘1’ = Bit is set
‘0’ = Bit is cleared
x = Bit is unknown
bit 7-5
REQOP: Request Operation Mode bits <2:0>
000
=
Set Normal Operation mode
001
=
Set Sleep mode
010
=
Set Loopback mode
011
=
Set Listen-only mode
100
=
Set Configuration mode
All other values for REQOP bits are invalid and should not be used
On power-up, REQOP = b’111’
bit 4
ABAT: Abort All Pending Transmissions bit
1
= Request abort of all pending transmit buffers
0
= Terminate request to abort all transmissions
bit 3
OSM: One Shot Mode bit
1
= Enabled. Message will only attempt to transmit one time
0
= Disabled. Messages will reattempt transmission, if required
bit 2
CLKEN: CLKOUT Pin Enable bit
1
= CLKOUT pin enabled
0
= CLKOUT pin disabled (Pin is in high-impedance state)
bit 1-0
CLKPRE: CLKOUT Pin Prescaler bits <1:0>
00
=FCLKOUT = System Clock/1
01
=FCLKOUT = System Clock/2
10
=FCLKOUT = System Clock/4
11
=FCLKOUT = System Clock/8
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
MCP2515-I 制造商:MICROCHIP 制造商全稱:Microchip Technology 功能描述:Stand-Alone CAN Controller with SPI Interface
MCP2515-I/ML 制造商:MICROCHIP 制造商全稱:Microchip Technology 功能描述:Stand-Alone CAN Controller with SPI Interface
MCP2515-I/P 功能描述:網(wǎng)絡(luò)控制器與處理器 IC W/ SPI Interface RoHS:否 制造商:Micrel 產(chǎn)品:Controller Area Network (CAN) 收發(fā)器數(shù)量: 數(shù)據(jù)速率: 電源電流（最大值）:595 mA 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:PBGA-400 封裝:Tray
MCP2515-I/P 制造商:Microchip Technology Inc 功能描述:CAN controller IC
MCP2515-I/SO 功能描述:網(wǎng)絡(luò)控制器與處理器 IC W/ SPI Interface RoHS:否 制造商:Micrel 產(chǎn)品:Controller Area Network (CAN) 收發(fā)器數(shù)量: 數(shù)據(jù)速率: 電源電流（最大值）:595 mA 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:PBGA-400 封裝:Tray
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