R4F24278NVFQU Renesas Electronics America, R4F24278NVFQU Datasheet - Page 1140
R4F24278NVFQU
Manufacturer Part Number
R4F24278NVFQU
Description
MCU 512K/48K 2.7-5.5V 144-LQFP
Manufacturer
Renesas Electronics America
Series
H8® H8S/2400r
Datasheet
1.R4F24278NVFQU.pdf
(1482 pages)
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
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
R4F24278NVFQU
Manufacturer:
REALTEK
Quantity:
2 300
Company:
Part Number:
R4F24278NVFQU
Manufacturer:
Renesas Electronics America
Quantity:
10 000
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Section 20 Synchronous Serial Communication Unit (SSU)
(3)
Figure 20.15 shows an example of reception operation, and figure 20.16 shows a flowchart
example of data reception. When receiving data, the SSU operates as shown below.
After setting the RE bit in SSER to 1, the SSU starts data reception.
In master mode, the SSU outputs a transfer clock and receives data. In slave mode, when a transfer
clock is input to the SSCK pin, the SSU receives data in synchronization with the transfer clock.
When 1-frame data has been received, the RDRF bit in SSSR is set to 1 and the receive data is
stored in SSRDR. At this time, if the RIE bit is set to 1, an RXI interrupt is generated. The RDRF
bit is automatically cleared to 0 by reading SSRDR.
When the RDRF bit has been set to 1 at the 8th rising edge of the transfer clock, the ORER bit in
SSSR is set to 1. This indicates that an overrun error (OEI) has occurred. At this time, data
reception is stopped. While the ORER bit in SSSR is set to 1, reception is not performed. To
resume the reception, clear the ORER bit to 0.
Page 1110 of 1448
SSCK
SSI
RDRF
LSI operation
User operation
Data Reception
Dummy-read SSRDR
Bit 0
Figure 20.15 Example of Reception Operation
(Clock Synchronous Communication Mode)
1 frame
Bit 7
RXI interrupt
generated
Bit 0
Read data from SSRDR
1 frame
RXI interrupt
generated
Bit 7
H8S/2427, H8S/2427R, H8S/2425 Group
Bit 0
REJ09B0565-0100 Rev. 1.00
Read data from SSRDR
RXI interrupt
Bit 7
generated
Jul 22, 2010
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