R4F24278NVFQU Renesas Electronics America, R4F24278NVFQU Datasheet - Page 982

• 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 16 Serial Communication Interface (SCI, IrDA, CRC)
16.6
Figure 16.14 shows the general format for clocked synchronous communication. In clocked
synchronous mode, data is transmitted or received in synchronization with clock pulses. One
character of communication data consists of 8-bit data. In clocked synchronous serial
communication, data on the transmission line is output from one falling edge of the serial clock to
the next. In clocked synchronous mode, the SCI receives data in synchronization with the rising
edge of the serial clock. After 8-bit data is output, the transmission line holds the MSB state. In
clocked synchronous mode, no parity or multiprocessor bit is added. Inside the SCI, the
transmitter and receiver are independent units, enabling full-duplex communication by use of a
common clock. Both the transmitter and the receiver also have a double-buffered structure, so that
data can be read or written during transmission or reception, enabling continuous data transfer.
16.6.1
Either an internal clock generated by the on-chip baud rate generator or an external
synchronization clock input at the SCK pin can be selected, according to the setting of CKE1 and
CKE0 bits in SCR. When the SCI is operated on an internal clock, the serial clock is output from
the SCK pin. Eight serial clock pulses are output in the transfer of one character, and when no
transfer is performed the clock is fixed high.
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Serial
Serial
clock
data
Note: * High except in continuous transmission/reception
Figure 16.14 Data Format in Clocked Synchronous Communication (For LSB-First)
Don't care
Operation in Clocked Synchronous Mode
Clock
*
LSB
Bit 0
Bit 1
One unit of transfer data (character or frame)
Bit 2
Bit 3
Bit 4
Bit 5
H8S/2427, H8S/2427R, H8S/2425 Group
Bit 6
REJ09B0565-0100 Rev. 1.00
Bit 7
MSB
Don't care
Jul 22, 2010
*