UPD70F3786GJ-GAE-AX Renesas Electronics America, UPD70F3786GJ-GAE-AX Datasheet - Page 1037

• Manufacturer Part Number: UPD70F3786GJ-GAE-AX
• Description: MCU 32BIT V850ES/JX3-E 144-LQFP
• Manufacturer: Renesas Electronics America
• Series: V850ES/Jx3-Er

Specifications of UPD70F3786GJ-GAE-AX

• Core Processor: RISC
• Core Size: 32-Bit
• Speed: 50MHz
• Connectivity: CAN, CSI, EBI/EMI, Ethernet, I²C, UART/USART, USB
• Peripherals: DMA, LVD, PWM, WDT
• Number Of I /o: 100
• Program Memory Size: 512KB (512K x 8)
• Program Memory Type: FLASH
• Ram Size: 124K x 8
• Voltage - Supply (vcc/vdd): 2.85 V ~ 3.6 V
• Data Converters: A/D 12x10b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 85°C
• Package / Case: *
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -

<4> Data field
<5> CRC field
The data field contains the amount of data (byte units) set by the control field. Up to 8 units of data can
be set.
The CRC field is a 16-bit field that is used to check for errors in transmit data.
• The polynomial P(X) used to generate the 15-bit CRC sequence is expressed as follows.
• Transmitting node: Transmits the CRC sequence calculated from the data (before bit stuffing) in the
• Receiving node:
Remark D: Dominant = 0
Remark D: Dominant = 0
P(X) = X
R
D
(Control field)
(Data field or control field)
R: Recessive = 1
R: Recessive = 1
15
R
D
+ X
14
+ X
MSB
10
start of frame, arbitration field, control field, and data field.
Compares the CRC sequence calculated using data bits that exclude the
stuffing bits in the receive data with the CRC sequence in the CRC field. If the
two CRC sequences do not match, the node issues an error frame.
+ X
8
(8 bits)
Data 0
+ X
CHAPTER 21 CAN CONTROLLER
→
7
Figure 21-10. CRC Field
User’s Manual U19601EJ2V0UD
+ X
Figure 21-9. Data Field
4
LSB
+ X
3
+ 1
Data field
CRC sequence
(15 bits)
CRC field
MSB
(8 bits)
Data 7
CRC delimiter
→
(1 bit)
LSB
(ACK field)
(CRC field)
1035