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| 型號： | MCP2515T-I/ST |
| 元件分類： | 微控制器/微處理器 |
| 英文描述： | 1 CHANNEL(S), 1M bps, SERIAL COMM CONTROLLER, PDSO20 |
| 封裝： | 4.40 MM, LEAD FREE, PLASTIC, TSSOP-20 |
| 文件頁數(shù)： | 11/88頁 |
| 文件大小： | 1205K |
| 代理商： | MCP2515T-I/ST |
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2010 Microchip Technology Inc.
DS21801F-page 19
MCP2515
REGISTER 3-2:
TXRTSCTRL – TXnRTS PIN CONTROL AND STATUS REGISTER
(ADDRESS: 0Dh)
U-0
R-x
R/W-0
—
B2RTS
B1RTS
B0RTS
B2RTSM
B1RTSM
B0RTSM
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
Unimplemented: Read as ‘0’
bit 6
Unimplemented: Read as ‘0’
bit 5
B2RTS: TX2RTS Pin State bit
- Reads state of TX2RTS pin when in Digital Input mode
- Reads as ‘0’ when pin is in ‘Request-to-Send’ mode
bit 4
B1RTS: TX1RTX Pin State bit
- Reads state of TX1RTS pin when in Digital Input mode
- Reads as ‘0’ when pin is in ‘Request-to-Send’ mode
bit 3
B0RTS: TX0RTS Pin State bit
- Reads state of TX0RTS pin when in Digital Input mode
- Reads as ‘0’ when pin is in ‘Request-to-Send’ mode
bit 2
B2RTSM: TX2RTS Pin mode bit
1
= Pin is used to request message transmission of TXB2 buffer (on falling edge)
0
= Digital input
bit 1
B1RTSM: TX1RTS Pin mode bit
1
= Pin is used to request message transmission of TXB1 buffer (on falling edge)
0
= Digital input
bit 0
B0RTSM: TX0RTS Pin mode bit
1
= Pin is used to request message transmission of TXB0 buffer (on falling edge)
0
= Digital input
REGISTER 3-3:
TXBnSIDH – TRANSMIT BUFFER n STANDARD IDENTIFIER HIGH
(ADDRESS: 31h, 41h, 51h)
R/W-x
SID10
SID9
SID8
SID7
SID6
SID5
SID4
SID3
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 7-0
SID: Standard Identifier bits <10:3>
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