UPD70F3738GF-GAS-AX Renesas Electronics America, UPD70F3738GF-GAS-AX Datasheet - Page 687

• 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: -

(7) Interrupt request signal generator
(8) Serial clock controller
(9) Serial clock wait controller
(10) ACK generator, stop condition detector, start condition detector, and ACK detector
(11) Data hold time correction circuit
(12) Start condition generator
(13) Stop condition generator
(14) Bus status detector
This circuit controls the generation of interrupt request signals (INTIICn).
An I
• Falling edge of eighth or ninth clock of the serial clock (set by IICCn.WTIMn bit)
• Interrupt occurrence due to stop condition detection (set by IICCn.SPIEn bit)
In master mode, this circuit generates the clock output via the SCL0n pin from the sampling clock (n = 0 to 2).
This circuit controls the wait timing.
These circuits are used to generate and detect various statuses.
This circuit generates the hold time for data corresponding to the falling edge of the SCL0n pin.
A start condition is generated when the IICCn.STTn bit is set.
However, in the communication reservation disabled status (IICFn.IICRSVn bit = 1), this request is ignored
and the IICFn.STCFn bit is set to 1 if the bus is not released (IICFn.IICBSYn bit = 1).
A stop condition is generated when the IICCn.SPTn bit is set.
Whether the bus is released or not is ascertained by detecting a start condition and stop condition.
However, the bus status cannot be detected immediately after operation, so set the bus status detector to the
initial status by using the IICFn.STCENn bit.
Remark
2
C interrupt is generated following either of two triggers.
n = 0 to 2
User’s Manual U18953EJ5V0UD
CHAPTER 19 I
2
C BUS
685