參數資料
型號: 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
文件頁數: 9/76頁
文件大?。?/td> 1076K
代理商: MCP2510T-E/P
1999 Microchip Technology Inc.
Preliminary
DS21291C-page 17
MCP2510
REGISTER 3-1:
TXBNCTRL Transmit Buffer N Control Register (ADDRESS: 30h, 40h, 50h)
U-0
R-0
R/W-0
U-0
R/W-0
ABTF
MLOA
TXERR
TXREQ
TXP1
TXP0
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:
Unimplemented: Reads as ‘0’
bit 6:
ABTF: Message Aborted Flag
1 = Message was aborted
0 = Message completed transmission successfully
bit 5:
MLOA: Message Lost Arbitration
1 = Message lost arbitration while being sent
0 = Message did not lose arbitration while being sent
bit 4:
TXERR: Transmission Error Detected
1 = A bus error occurred while the message was being transmitted
0 = No bus error occurred while the message was being transmitted
bit 3:
TXREQ: Message Transmit Request
1 = Buffer is currently pending transmission
(MCU sets this bit to request message be transmitted - bit is automatically cleared when
the message is sent)
0 = Buffer is not currently pending transmission
(MCU can clear this bit to request a message abort)
bit 2:
Unimplemented: Reads as ‘0’
bit 1-0:
TXP<1:0>: Transmit Buffer Priority
11 = Highest Message Priority
10 = High Intermediate Message Priority
01 = Low Intermediate Message Priority
00 = Lowest Message Priority
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