R4F24278NVFQU Renesas Electronics America, R4F24278NVFQU Datasheet - Page 1056

• Manufacturer Part Number: R4F24278NVFQU
• Description: MCU 512K/48K 2.7-5.5V 144-LQFP
• Manufacturer: Renesas Electronics America
• Series: H8® H8S/2400r

Specifications of R4F24278NVFQU

• Core Processor: H8S/2600
• Core Size: 16/32-Bit
• Speed: 33MHz
• Connectivity: EBI/EMI, I²C, IrDA, SCI, Smart Card, SPI, SSU, UART/USART
• Peripherals: DMA, POR, PWM, WDT
• Number Of I /o: 98
• Program Memory Size: 512KB (512K x 8)
• Program Memory Type: FLASH
• Eeprom Size: -
• Ram Size: 64K x 8
• Voltage - Supply (vcc/vdd): 3 V ~ 3.6 V
• Data Converters: A/D 16x10b; D/A 2x8b
• Oscillator Type: External
• Operating Temperature: -20°C ~ 75°C
• Package / Case: 144-LQFP
• Lead Free Status / Rohs Status: Lead free / RoHS Compliant

Section 17 I
Page 1026 of 1448
No
Clear RDRF in ICSR
Clear STOP in ICSR
Set RIE = 1 in ICIER
Set RIE = 0 in ICIER
Read STOP in ICSR
2
STOP=1 ?
C Bus Interface 2 (IIC2)
Additional information: If only one byte is received, steps [2] through [6] are omitted following step [1],
Note: *
Yes
In slave receive mode, even if the actual and received slave addresses did not match,
received data are stored in ICDRR, after which the RDRF bit in ICSR is set.
Checking whether or not the addresses matched is thus required.
Figure 17.17 Sample Flowchart for Slave Receive Mode
and processing jumps to step [7]. Step [8] is ICDRR dummy read.
[12]
[13]
[14]
[15]
No
No
No
No
Set ACKBT=1 in ICIER
Set ACKBT=0 in ICIER
Dummy read ICDRR
Read RDRF in ICSR
Read RDRF in ICSR
Slave receive mode
Clear AAS in ICSR
Read AAS in ICSR
Read RDRF in ICSR
Last receive
Read ICDRR
Read ICDRR
RDRF=1 ?
Read ICDRR
RDRF=1 ?
RDRF=1 ?
AAS=1 ?
- 1?
End
Yes
No
Yes
Yes
Yes
Yes
[1]
[2]
[3]
[4]
[5]
[6]
[7]
[8]
[9]
[10]
[11
H8S/2427, H8S/2427R, H8S/2425 Group
[1] Determination of slave address*
[2] Clear the AAS flag.
[3] Set the acknowledge for the transmit device.
[4] Dummy read ICDRR.
[5] Wait the reception end of 1 byte.
[6] Check if the (last receive - 1).
[7] Read the received data.
[8] Set the acknowledge for the last byte.
[9] Read the received data of the (last byte - 1).
[10] Wait the reception end of the last byte.
[11] Read the received data of the last byte.
[12] Receive-data-full interrupt requests
[13] Determined by the stop condition
[14] Clear the RDRF and STOP flags.
[15] Receive-data-full interrupt requests
Use receive-data-full interrupts to determine
whether the slave address matches.
• If the slave address did match (AAS = 1),
• If the slave address did not match (AAS = 0),
are disabled.
detection flag.
are enabled.
execute steps [2] to [11].
execute steps [12] to [15].
REJ09B0565-0100 Rev. 1.00
Jul 22, 2010