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MCP2510
DS21291F-page 18
2007 Microchip Technology Inc.
REGISTER 3-2:
TXRTSCTRL - TXNRTS PIN CONTROL AND STATUS REGISTER
(ADDRESS: 0Dh)
REGISTER 3-3:
TXBNSIDH - TRANSMIT BUFFER N STANDARD IDENTIFIER HIGH
(ADDRESS: 31h, 41h, 51h)
U-0
R-x
R/W-0
—
B2RTS
B1RTS
B0RTS
B2RTSM
B1RTSM B0RTSM
bit 7
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
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
R/W-x
SID10
SID9SID8SID7SID6SID5SID4SID3
bit 7
bit 0
bit 7-0
SID<10:3>: Standard Identifier Bits <10:3>
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