UPD70F3771GF-GAT-AX Renesas Electronics America, UPD70F3771GF-GAT-AX Datasheet - Page 980

• 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
20.8.4 Transition from initialization mode to operation mode
R01UH0042EJ0400 Rev.4.00
Sep 30, 2010
Cautions 1. When a message is received, reception filtering is performed in accordance with the ID and mask
The CAN module can be switched to the following operation modes.
•
•
•
•
•
Normal operation mode
Normal operation mode with ABT
Receive-only mode
Single-shot mode
Self-test mode
Figure 20-27. Setting Transmission Request (TRQ) to Transmit Message Buffer After Redefinition
2. When a message is transmitted, the transmission priority is checked in accordance with the ID,
set to each receive message buffer. If the procedure in Figure 20-39 is not observed, the contents
of the message buffer after it has been redefined may contradict the result of reception (result of
reception filtering). If this happens, check that the ID and IDE received first and stored in the
message buffer following redefinition are those stored after the message buffer has been
redefined. If no ID and IDE are stored after redefinition, redefine the message buffer again.
IDE, and RTR bits set to each transmit message buffer to which a transmission request was set.
The transmit message buffer having the highest priority is selected for transmission. If the
procedure in Figure 20-27 is not observed, a message with an ID not having the highest priority
may be transmitted after redefinition.
Wait for 1 bit of CAN data.
Redefinition completed
Clear TRQ bit = 0
Set TRQ bit = 1
transmission?
Set TRQ bit
Execute
END
Yes
No
CHAPTER 20 CAN CONTROLLER
Page 980 of 1509