UPD70F3771GF-GAT-AX Renesas Electronics America, UPD70F3771GF-GAT-AX Datasheet - Page 982

• Manufacturer Part Number: UPD70F3771GF-GAT-AX
• Description: MCU 32BIT V850ES/JX3-H 128-LQFP
• Manufacturer: Renesas Electronics America
• Series: V850ES/Jx3-Hr

Specifications of UPD70F3771GF-GAT-AX

• Core Processor: RISC
• Core Size: 32-Bit
• Speed: 48MHz
• Connectivity: CAN, 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
20.9 Message Reception
20.9.1 Message reception
order to store newly receive messages.
priority explained below. The message is always stored in the message buffer with the highest priority, not in a message
buffer with a low priority. For example, when an unmasked receive message buffer and a receive message buffer linked
to mask 1 have the same ID, the received message is not stored in the message buffer linked to mask 1 that has not
received a message, even if a message has already been received in the unmasked receive message buffer. In other
words, when a condition has been set to store a message in two or more message buffers with different priorities, the
message buffer with the highest priority always stores the message; the message is not stored in message buffers with a
lower priority. This also applies when the message buffer with the highest priority is unable to receive and store a
message (i.e., when the DN bit = 1 indicating that a message has already been received, but rewriting is disabled because
the OWS bit = 0). In this case, the message is not actually received and stored in the candidate message buffer with the
highest priority, but neither is it stored in a message buffer with a lower priority.
R01UH0042EJ0400 Rev.4.00
Sep 30, 2010
All buffers satisfying the following conditions are searched in all the message buffer areas in all the operation modes in
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•
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Remark
When two or more message buffers of the CAN module receive a message, the message is stored according to the
1 (high)
2
3
4
5 (low)
Used as a message buffer
(C0MCONFm.MA0 bit is set to 1.)
Set as a receive message buffer
(C0MCONFm.MT2 to C0MCONFm.MT0 bits are set to 001B, 010B, 011B, 100B, or 101B.)
Ready for reception
(C0MCTRLm.RDY bit is set to 1.)
m = 00 to 31
Priority
Unmasked message buffer
Message buffer linked to mask 1
Message buffer linked to mask 2
Message buffer linked to mask 3
Message buffer linked to mask 4
Storing Condition If Same ID Is Set
CHAPTER 20 CAN CONTROLLER
DN bit = 0
DN bit = 1 and OWS bit = 1
DN bit = 0
DN bit = 1 and OWS bit = 1
DN bit = 0
DN bit = 1 and OWS bit = 1
DN bit = 0
DN bit = 1 and OWS bit = 1
DN bit = 0
DN bit = 1 and OWS bit = 1
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