MCP2510-I Datasheet, PDF (18/80 Pages) Microchip Technology – Stand-Alone CAN Controller with SPIInterface

MCP2510
REGISTER 3-2:
TXRTSCTRL - TXNRTS PIN CONTROL AND STATUS REGISTER
(ADDRESS: 0Dh)
U-0
—
bit 7
U-0
R-x
R-x
R-x
R/W-0
R/W-0 R/W-0
—
B2RTS B1RTS B0RTS B2RTSM B1RTSM B0RTSM
bit 0
bit 7
Unimplemented: Read as '0'
bit 6
Unimplemented: Read as '0'
bit 5
B2RTS: TX2RTS Pin State
- 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
- 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
- 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
1 = Pin is used to request message transmission of TXB2 buffer (on falling edge)
0 = Digital input
bit 1
B1RTSM: TX1RTS Pin Mode
1 = Pin is used to request message transmission of TXB1 buffer (on falling edge)
0 = Digital input
bit 0
B0RTSM: TX0RTS Pin Mode
1 = Pin is used to request message transmission of TXB0 buffer (on falling edge)
0 = Digital input
Legend:
R = Readable bit
-n = Value at POR
W = Writable bit
’1’ = Bit is set
U = Unimplemented bit, read as ‘0’
’0’ = Bit is cleared x = Bit is unknown
REGISTER 3-3:
TXBNSIDH - TRANSMIT BUFFER N STANDARD IDENTIFIER HIGH
(ADDRESS: 31h, 41h, 51h)
R/W-x
SID10
bit 7
R/W-x
SID9
R/W-x
SID8
R/W-x
SID7
R/W-x
SID6
R/W-x
SID5
R/W-x
SID4
R/W-x
SID3
bit 0
bit 7-0
SID<10:3>: Standard Identifier Bits <10:3>
Legend:
R = Readable bit
-n = Value at POR
W = Writable bit
’1’ = Bit is set
U = Unimplemented bit, read as ‘0’
’0’ = Bit is cleared x = Bit is unknown
DS21291F-page 18
© 2007 Microchip Technology Inc.