UPD78F0890GK(A)-GAJ-AX NEC, UPD78F0890GK(A)-GAJ-AX Datasheet - Page 379

• Manufacturer Part Number: UPD78F0890GK(A)-GAJ-AX
• Description: 8BIT MCU, 128K FLASH, 7K RAM, LQFP
• Manufacturer: NEC

Specifications of UPD78F0890GK(A)-GAJ-AX

• Controller Family/series: UPD78F
• No. Of I/o's: 55
• Ram Memory Size: 7KB
• Cpu Speed: 20MHz
• No. Of Timers: 10
• No. Of Pwm: RoHS Compliant
• Core Size: 8bit
• Program Memory Size: 128KB
• Oscillator Type: External, Internal

16.1.2 Overview of functions
Protocol
Baud rate
Data storage
Number of messages
Message reception
Message transmission
Remote frame processing
Time stamp function
Diagnostic function
Forced release from bus-off state
Power save mode
Table 16-1 presents an overview of the CAN controller functions.
Function
CAN protocol ISO 11898 (standard and extended frame transmission/reception)
Maximum 1 Mbps (CAN clock input ≥ 8 MHz)
Storing messages in the CAN RAM
- 16 message buffers/1 channel
- Each message buffer can be set to be either a transmit message buffer or a receive
- Unique ID can be set to each message buffer.
- Mask setting of four patterns is possible for each channel.
- A receive completion interrupt is generated each time a message is received and stored in
- Two or more receive message buffers can be used as a FIFO receive buffer (multi-buffer
- Receive history list function
- Unique ID can be set to each message buffer.
- Transmit completion interrupt for each message buffer
- Message buffer number 0 to 7 specified as the transmit message buffer can be used for
- Transmission history list function
Remote frame processing by transmit message buffer
- The time stamp function can be set for a message reception when a 16-bit timer is used in
- Readable error counters
- “Valid protocol operation flag” for verification of bus connections
- Receive-only mode
- Single-shot mode
- CAN protocol error type decoding
- Self-test mode
- Forced release from bus-off (by ignoring timing constraint) possible by software.
- No automatic release from bus-off (software must re-enable).
- CAN sleep mode (can be woken up by CAN bus)
- CAN stop mode (cannot be woken up by CAN bus)
message buffer.
a message buffer.
receive block function).
automatic block transfer. Message transmission interval is programmable (automatic
block transmission function (hereafter referred to as “ABT”)).
combination.
Time stamp capture trigger can be selected (SOF or EOF in a CAN message frame can
be detected.).
Table 16-1. Overview of Functions
CHAPTER 16 CAN CONTROLLER
User’s Manual U17554EJ4V0UD
Details
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