MCP25020-I/SL Microchip Technology, MCP25020-I/SL Datasheet - Page 24

• Manufacturer Part Number: MCP25020-I/SL
• Description: IC I/O EXPANDER CAN 8B 14SOIC
• Manufacturer: Microchip Technology

Specifications of MCP25020-I/SL

• Interface: CAN
• Number Of I /o: 8
• Interrupt Output: No
• Frequency - Clock: 4MHz
• Voltage - Supply: 2.75 V ~ 5.5 V
• Operating Temperature: -40°C ~ 85°C
• Mounting Type: Surface Mount
• Package / Case: 14-SOIC (3.9mm Width), 14-SOL
• Includes: Memory, PWM
• Ic Interface Type: CAN, Serial
• No. Of Tx Buffers: 3
• No. Of Rx Buffers: 2
• No. Of Filters: 2
• No. Of Masks: 1
• Supply Voltage Range: 2.7V To 5.5V
• Digital Ic Case Style: SOIC
• No. Of Pins: 14
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• For Use With: MCP2515DM-PCTL - BOARD DEMO FOR MCP2515
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant, Lead free / RoHS Compliant
• Other names: MCP25020I/SL

MCP2502X/5X
4.4.3
There is a priority for all transmit messages, including
TXIDn and all “Output” messages.
The transmit message priority is as follows:
1.
2.
3.
4.
In the event two or more messages are pending
transmission, transmit-message-prioritization will occur
and the highest message type will be sent first.
Messages that are currently transmitting will not be
prioritized.
DS21664D-page 24
Output messages have the highest priority.
Prioritization of the individual output message
types is determined by the three bits that
determine message type, with the lowest value
having the highest priority (e.g., Read A/D Regs
is a higher priority than Read Control Regs).
TXID2 (Transmit auto-converted messages) has
the second-highest priority.
TXID1 (Command acknowledge) has the third-
highest priority.
TXID0 (On Bus message) has the lowest
priority.
TRANSMIT MESSAGE PRIORITY
© 2007 Microchip Technology Inc.