R4F24278NVFQU Renesas Electronics America, R4F24278NVFQU Datasheet - Page 1114

• 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 20 Synchronous Serial Communication Unit (SSU)
20.3.5
SSSR is a status flag register for interrupts.
Page 1084 of 1448
Bit
7
6
5, 4
Bit Name
⎯
ORER
⎯
SS Status Register (SSSR)
Initial
Value
0
0
All 0
R/W
⎯
R/W
R/W
Description
Reserved
This bit is always read as 0. The write value should
always be 0.
Overrun Error
If the next data is received while RDRF = 1, an overrun
error occurs, indicating abnormal termination. SSRDR
stores 1-frame receive data before an overrun error
occurs and loses data to be received later. While
ORER = 1, consecutive serial reception cannot be
continued. Serial transmission cannot be continued,
either.
[Setting condition]
When one byte of the next reception is completed with
RDRF = 1
[Clearing condition]
When writing 0 after reading ORER = 1
(When the CPU is used to clear this flag by writing 0
while the corresponding interrupt is enabled, be sure to
read the flag after writing 0 to it.)
Reserved
These bits are always read as 0. The write value should
always be 0.
H8S/2427, H8S/2427R, H8S/2425 Group
REJ09B0565-0100 Rev. 1.00
Jul 22, 2010