UPD70F3786GJ-GAE-AX Renesas Electronics America, UPD70F3786GJ-GAE-AX Datasheet - Page 1018
UPD70F3786GJ-GAE-AX
Manufacturer Part Number
UPD70F3786GJ-GAE-AX
Description
MCU 32BIT V850ES/JX3-E 144-LQFP
Manufacturer
Renesas Electronics America
Series
V850ES/Jx3-Er
Datasheet
1.UPD70F3778GF-GAT-AX.pdf
(1817 pages)
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
-
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UPD70F3786GJ-GAE-AX
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20.16.3 Slave operation
(processing requiring a significant change of the operation status, such as stop condition detection during
communication) is necessary.
that the INTIICn interrupt servicing performs only status change processing and that the actual data communication is
performed during the main processing.
these flags to the main processing instead of the INTIICn signal.
(1) Communication mode flag
(2) Ready flag
(3) Communication direction flag
1016
The following shows the processing procedure of slave operation.
Basically, the operation of the slave device is event-driven.
The following description assumes that data communication does not support extension codes. Also, it is assumed
Therefore, the following three flags are prepared so that the data transfer processing can be performed by passing
This flag indicates the following communication statuses.
Clear mode:
Communication mode: Data communication in progress (valid address detection stop condition detection, ACK
This flag indicates that data communication is enabled. This is the same status as an INTIICn interrupt during
normal data transfer. This flag is set in the interrupt processing block and cleared in the main processing block.
The ready flag for the first data for transmission is not set in the interrupt processing block, so the first data is
transmitted without clear processing (the address match is regarded as a request for the next data).
This flag indicates the direction of communication and is the same as the value of IICSn.TRCn bit.
Remark
n = 0 to 3 (V850ES/JH3-E)
n = 0 to 4 (V850ES/JJ3-E)
I
2
C
Figure 20-21. Overview of Software During Slave Operation
Data communication not in progress
from master not detected, address mismatch)
INTIICn signal
Setting, etc.
User’s Manual U19601EJ2V0UD
CHAPTER 20 I
Interrupt servicing
Setting, etc.
Data
2
C BUS
Therefore, processing by an INTIICn interrupt
Flag
Main processing
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