UPD70F3771GF-GAT-AX Renesas Electronics America, UPD70F3771GF-GAT-AX Datasheet - Page 876

• Manufacturer Part Number: UPD70F3771GF-GAT-AX
• Description: MCU 32BIT V850ES/JX3-H 128-LQFP
• Manufacturer: Renesas Electronics America
• Series: V850ES/Jx3-Hr

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: -

V850ES/JG3-H, V850ES/JH3-H
19.15 Cautions
R01UH0042EJ0400 Rev.4.00
Sep 30, 2010
(1) When IICFn.STCENn bit = 0
(2) When IICFn.STCENn bit = 1
(3) When the IICCn.IICEn bit of the V850ES/JG3-H and V850ES/JH3-H is set to 1 while other devices are
(4) Determine the operation clock frequency by using the IICCLn, IICXn, and OCKSm registers before enabling the
(5) After the IICCn.STTn and IICCn.SPTn bits have been set to 1, they must not be re-set without being cleared to 0
(6) If transmission has been reserved, set the IICCN.SPIEn bit to 1 so that an interrupt request is generated by the
<1> Set the IICCLn register.
<2> Set the IICCn.IICEn bit.
<3> Set the IICCn.SPTn bit.
Immediately after the I
recognized regardless of the actual bus status. To execute master communication in the status where a stop
condition has not been detected, generate a stop condition and then release the bus before starting the master
communication.
Use the following sequence for generating a stop condition.
Immediately after I
the actual bus status. To generate the first start condition (IICCn.STTn bit = 1), it is necessary to confirm that the
bus has been released, so as to not disturb other communications.
communicating, the start condition may be detected depending on the status of the communication line. Be sure to
set the IICCn.IICEn bit to 1 when the SCL0n and SDA0n lines are high level.
operation (IICCn.IICEn bit = 1). To change the operation clock frequency, first clear the IICCn.IICEn bit to 0.
first.
detection of a stop condition. After an interrupt request has been generated, the wait status will be released by
writing communication data to I
stop condition, transmission will halt in the wait status because an interrupt request was not generated. However, it
is not necessary to set the SPIEn bit to 1 for the software to detect the IICSn.MSTSn bit.
Remark
n = 0 to 2
m = 0, 1
2
C0n operation is enabled, the bus release status (IICBSYn bit = 0) is recognized regardless of
2
C0n operation is enabled, the bus communication status (IICFn.IICBSYn bit = 1) is
2
Cn, then transfer will begin. If an interrupt is not generated by the detection of a
CHAPTER 19 I
Page 876 of 1509
2
C BUS