參數(shù)資料
型號(hào): MCP2515T-E/ST
廠商: Microchip Technology
文件頁數(shù): 18/88頁
文件大?。?/td> 0K
描述: IC CAN CONTROLLER W/SPI 20TSSOP
標(biāo)準(zhǔn)包裝: 2,500
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: 帶卷 (TR)
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
2010 Microchip Technology Inc.
DS21801F-page 25
MCP2515
4.4.3
CONFIGURED AS DIGITAL OUTPUT
When used as digital outputs, the BFPCTRL.BxBFM bit
must be cleared and BFPCTRL.BnBFE must be set for
the associated buffer. In this mode, the state of the pin
is controlled by the BFPCTRL.BnBFS bits. Writing a ‘1’
to the BnBFS bit will cause a high level to be driven on
the associated buffer full pin, while a ‘0’ will cause the
pin to drive low. When using the pins in this mode, the
state of the pin should be modified only by using the Bit
Modify SPI command to prevent glitches from
occurring on either of the buffer full pins.
TABLE 4-1:
CONFIGURING RXNBF PINS
FIGURE 4-2:
RECEIVE BUFFER BLOCK DIAGRAM
BnBFE BnBFM BnBFS
Pin Status
0XX
Disabled, high-impedance
11X
Receive buffer interrupt
100
Digital output = 0
101
Digital output = 1
Acceptance Mask
RXM1
Acceptance Filter
RXF2
Acceptance Filter
RXF3
Acceptance Filter
RXF4
Acceptance Filter
RXF5
Acceptance Mask
RXM0
Acceptance Filter
RXF0
Acceptance Filter
RXF1
Identifier
Data Field
Identifier
Note:
Messages received in the MAB are intially
applied to the mask and filters of RXB0. In
addition, only one filter match occurs (e.g.,
if the message matches both RXF0 and
RXF2, the match will be for RXF0 and the
message will be moved into RXB0).
A
c
e
p
t
A
c
e
p
t
R
X
B
0
R
X
B
1
M
A
B
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