UPD70F3735GC-GAD-AX Renesas Electronics America, UPD70F3735GC-GAD-AX Datasheet - Page 592
UPD70F3735GC-GAD-AX
Manufacturer Part Number
UPD70F3735GC-GAD-AX
Description
MCU 32BIT V850ES/JX3-L 80-LQFP
Manufacturer
Renesas Electronics America
Series
V850ES/Jx3-Lr
Datasheet
1.UPD70F3735GC-GAD-AX.pdf
(835 pages)
Specifications of UPD70F3735GC-GAD-AX
Core Processor
RISC
Core Size
32-Bit
Speed
20MHz
Connectivity
CSI, EBI/EMI, I²C, UART/USART
Peripherals
DMA, LVD, PWM, WDT
Number Of I /o
66
Program Memory Size
128KB (128K x 8)
Program Memory Type
FLASH
Ram Size
8K x 8
Voltage - Supply (vcc/vdd)
2.2 V ~ 3.6 V
Data Converters
A/D 8x10b, D/A 1x8b
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:
UPD70F3735GC-GAD-AX
Manufacturer:
Renesas Electronics America
Quantity:
10 000
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V850ES/JF3-L
17.16 Communication Operations
R01UH0017EJ0400 Rev.4.00
Sep 30, 2010
The following shows three operation procedures with the flowchart.
(1) Master operation in single master system
(2) Master operation in multimaster system
(3) Slave operation
The flowchart when using the V850ES/JF3-L as the master in a single master system is shown below.
This flowchart is broadly divided into the initial settings and communication processing. Execute the initial settings
at startup.
communication processing.
In the I
specifications when the bus takes part in a communication. Here, when data and clock are at a high level for a
certain period (1 frame), the V850ES/JF3-L takes part in a communication with bus released state.
This flowchart is broadly divided into the initial settings, communication waiting, and communication processing.
The processing when the V850ES/JF3-L loses in arbitration and is specified as the slave is omitted here, and only
the processing as the master is shown. Execute the initial settings at startup to take part in a communication.
Then, wait for the communication request as the master or wait for the specification as the slave. The actual
communication is performed in the communication processing, and it supports the transmission/reception with the
slave and the arbitration with other masters.
An example of when the V850ES/JF3-L is used as the slave of the I
When used as the slave, operation is started by an interrupt. Execute the initial settings at startup, then wait for the
INTIICn interrupt occurrence (communication waiting). When the INTIICn interrupt occurs, the communication
status is judged and its result is passed as a flag over to the main processing.
By checking the flags, necessary communication processing is performed.
Remark
2
C0n bus multimaster system, whether the bus is released or used cannot be judged by the I
n = 0, 1
If communication with the slave is required, prepare the communication and then execute
2
C0n bus is shown below.
CAPTER 17 I
Page 576 of 816
2
C BUS
2
C bus
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