UPD70F3771GF-GAT-AX Renesas Electronics America, UPD70F3771GF-GAT-AX Datasheet - Page 990
UPD70F3771GF-GAT-AX
Manufacturer Part Number
UPD70F3771GF-GAT-AX
Description
MCU 32BIT V850ES/JX3-H 128-LQFP
Manufacturer
Renesas Electronics America
Series
V850ES/Jx3-Hr
Datasheet
1.UPD70F3760GC-UEU-AX.pdf
(1512 pages)
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
-
Available stocks
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Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
UPD70F3771GF-GAT-AX
Manufacturer:
Renesas Electronics America
Quantity:
10 000
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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
Page 990 of 1509
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