參數(shù)資料
型號(hào): MCP2510T-E/P
元件分類: 微控制器/微處理器
英文描述: 2 CHANNEL(S), 1M bps, LOCAL AREA NETWORK CONTROLLER, PDIP18
封裝: 0.300 INCH, PLASTIC, DIP-18
文件頁(yè)數(shù): 38/76頁(yè)
文件大?。?/td> 1076K
代理商: MCP2510T-E/P
1999 Microchip Technology Inc.
Preliminary
DS21291C-page 43
MCP2510
REGISTER 6-3:
EFLG - Error Flag Register (ADDRESS: 2Dh)
R/W-0
R-0
RX1OVR RX0OVR
TXBO
TXEP
RXEP
TXWAR RXWAR EWARN
R = Readable bit
W = Writable bit
C = Bit can be cleared by
MCU but not set
U = Unimplemented -
reads as ‘0’
- n = Value at POR reset
bit 7
bit 0
bit 7:
RX1OVR: Receive Buffer 1 Overflow Flag
- Set when a valid message is received for RXB1 and CANINTF.RX1IF = 1
- Must be reset by MCU
bit 6:
RX0OVR: Receive Buffer 0 Overflow Flag
- Set when a valid message is received for RXB0 and CANINTF.RX0IF = 1
- Must be reset by MCU
bit 5:
TXBO: Bus-Off Error Flag
- Bit set when TEC reaches 255
- Reset after a successful bus recovery sequence
bit 4:
TXEP: Transmit Error-Passive Flag
- Set when TEC is equal to or greater than 128
- Reset when TEC is less than 128
bit 3:
RXEP: Receive Error-Passive Flag
- Set when REC is equal to or greater than 128
- Reset when REC is less than 128
bit 2:
TXWAR: Transmit Error Warning Flag
- Set when TEC is equal to or greater than 96
- Reset when TEC is less than 96
bit 1:
RXWAR: Receive Error Warning Flag
- Set when REC is equal to or greater than 96
- Reset when REC is less than 96
bit 0:
EWARN: Error Warning Flag
- Set when TEC or REC is equal to or greater than 96 (TXWAR or RXWAR = 1)
-
Reset when both REC and TEC are less than 96
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