UPD70F3765GF-GAT-AX Renesas Electronics America, UPD70F3765GF-GAT-AX Datasheet - Page 990

• Manufacturer Part Number: UPD70F3765GF-GAT-AX
• Description: MCU 32BIT V850ES/JX3-H 128-LQFP
• Manufacturer: Renesas Electronics America
• Series: V850ES/Jx3-Hr

Specifications of UPD70F3765GF-GAT-AX

• Core Processor: RISC
• Core Size: 32-Bit
• Speed: 48MHz
• Connectivity: CSI, EBI/EMI, I²C, UART/USART, USB
• Peripherals: DMA, LVD, PWM, WDT
• Number Of I /o: 96
• Program Memory Size: 256KB (256K x 8)
• Program Memory Type: FLASH
• Ram Size: 40K x 8
• Voltage - Supply (vcc/vdd): 2.85 V ~ 3.6 V
• Data Converters: A/D 12x10b; D/A 2x8b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 85°C
• Package / Case: *
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -

V850ES/JG3-H, V850ES/JH3-H
20.10 Message Transmission
20.10.1 Message transmission
conditions, the message buffer that is to transmit a message is searched.
determined based on message identifiers (IDs). To facilitate transmission processing by software when there are several
messages awaiting transmission, the CAN module uses hardware to check the ID of the message with the highest priority
and automatically identifies that message. This eliminates the need for software-based priority control.
R01UH0042EJ0400 Rev.4.00
Sep 30, 2010
In all the operation modes, if the C0MCTRLm.TRQ bit is set to 1 in a message buffer that satisfies the following
•
• Set as a transmit message buffer
•
Remark
The CAN system is a multi-master communication system. In a system like this, the priority of message transmission is
Transmission priority is controlled by the identifier (ID).
(C0MCONFm.MT2 to C0MCONFm.MT0 bits set to 000B.)
(C0MCTRLm.RDY bit is set to 1.)
Used as a message buffer
(C0MCONFm.MA0 bit set to 1.)
Ready for transmission
Message No.
m = 00 to 31
0
1
2
3
4
5
6
7
8
9
Message waiting to be transmitted
ID = 120H
ID = 229H
ID = 223H
ID = 023H
ID = 123H
Figure 20-31. Message Processing Example
The CAN module transmits messages in the following sequence.
1. Message 6
2. Message 1
3. Message 8
4. Message 5
5. Message 2
CHAPTER 20 CAN CONTROLLER
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