UPD70F3737GC-UEU-AX Renesas Electronics America, UPD70F3737GC-UEU-AX Datasheet - Page 614

• Manufacturer Part Number: UPD70F3737GC-UEU-AX
• Description: MCU 32BIT V850ES/JX3-L 100-LQFP
• Manufacturer: Renesas Electronics America
• Series: V850ES/Jx3-Lr

Specifications of UPD70F3737GC-UEU-AX

• Package / Case: *
• Voltage - Supply (vcc/vdd): 2.2 V ~ 3.6 V
• Operating Temperature: -40°C ~ 85°C
• Speed: 20MHz
• Number Of I /o: 84
• Core Processor: RISC
• Program Memory Type: FLASH
• Ram Size: 8K x 8
• Program Memory Size: 128KB (128K x 8)
• Data Converters: A/D 12x10b, D/A 2x8b
• Oscillator Type: Internal
• Peripherals: DMA, LVD, PWM, WDT
• Connectivity: CSI, EBI/EMI, I²C, UART/USART
• Core Size: 32-Bit
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -

17.15 Cautions
614
(1) When IICFn.STCENn bit = 0
(2) When IICFn.STCENn bit = 1
(3) When the IICCn.IICEn bit of the V850ES/JG3-L is set to 1 while communications with other devices are in
(4) Determine the operation clock frequency by 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
(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
regardless of 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.
progress, 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, clear the IICCn.IICEn bit to 0 once.
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
of a 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 released status (IICBSYn bit = 0) is recognized
2
C0n operation is enabled, the bus communication status (IICFn.IICBSYn bit = 1) is
2
Cn, then transferring will begin. If an interrupt is not generated by the detection
Preliminary User’s Manual U18953EJ1V0UD
CHAPTER 17 I
2
C BUS