UPD70F3738GF-GAS-AX Renesas Electronics America, UPD70F3738GF-GAS-AX Datasheet - Page 741

• Manufacturer Part Number: UPD70F3738GF-GAS-AX
• Description: MCU 32BIT V850ES/JX3-L 100-LQFP
• Manufacturer: Renesas Electronics America
• Series: V850ES/Jx3-Lr

Specifications of UPD70F3738GF-GAS-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: 84
• Program Memory Size: 256KB (256K x 8)
• Program Memory Type: FLASH
• Ram Size: 16K x 8
• Voltage - Supply (vcc/vdd): 2.2 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: -

The communication reservation flowchart is illustrated below.
(Communication reservation)
Note When communication is reserved, the IICn register is written when a stop condition interrupt request
Remark
occurs.
n = 0 to 2
Figure 19-17. Communication Reservation Flowchart
Yes
Note
Cancel communication
reservation
Define communication
reservation
IICn register
MSTSn bit = 0?
SET1 STTn
Wait
DI
EI
User’s Manual U18953EJ5V0UD
No
(Generate start condition)
CHAPTER 19 I
←
xxH
2
C BUS
Sets STTn bit (communication reservation).
Defines that communication reservation is in effect
(defines and sets user flag to any part of RAM).
Secures wait period set by software (see Table 17-6).
Confirmation of communication reservation
Clears user flag.
IICn register write operation
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