HD6417706F133 Renesas Electronics America, HD6417706F133 Datasheet - Page 465

• Manufacturer Part Number: HD6417706F133
• Description: IC SUPERH MPU ROMLESS 176LQFP
• Manufacturer: Renesas Electronics America
• Series: SuperH® SH7700r

Specifications of HD6417706F133

• Core Processor: SH-3
• Core Size: 32-Bit
• Speed: 133MHz
• Connectivity: EBI/EMI, FIFO, SCI, SmartCard
• Peripherals: DMA, POR, WDT
• Number Of I /o: 103
• Program Memory Type: ROMless
• Ram Size: 16K x 8
• Voltage - Supply (vcc/vdd): 1.75 V ~ 2.05 V
• Oscillator Type: Internal
• Operating Temperature: -20°C ~ 75°C
• Package / Case: 176-LQFP
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Eeprom Size: -
• Program Memory Size: -
• Data Converters: -

In receiving, the SCI operates as follows:
1. The SCI synchronizes with serial clock input or output and initializes internally.
2. Receive data is stored into the SCRSR in order from the LSB to the MSB. After receiving the
3. After setting RDRF to 1, if the RIE is set to 1 in the SCSCR, the SCI requests a receive-data-
Figure 14.22 shows an example of the SCI receive operation.
data, the SCI checks that RDRF is 0 so that receive data can be loaded from the SCRSR into
the SCRDR. If this check is passed, the SCI sets RDRF to 1 and stores the received data in the
SCRDR. If the check is not passed (receive error), the SCI operates as indicated in table 14.11.
This state prevents further transmission or reception. While receiving, the RDRF bit is not set
to 1. Be sure to clear the error flag.
full interrupt (RXI). If the ORER bit is set to 1 and the RIE in the SCSCR is also set to 1, the
SCI requests a receive-error interrupt (ERI).
Synchronization
clock
RDRF
ORER
Serial
data
RXI interrupt
request
generated
Transfer direction
Bit 7
Figure 14.22 Example of SCI Receive Operation
Reads data with
the RXI interrupt
processing routine
and clears RDRF
bit to 0
Bit 0
1 frame
Bit 7
Section 14 Serial Communication Interface (SCI)
RXI interrupt
request
generated
Bit 0
Rev. 5.00 May 29, 2006 page 415 of 698
Bit 1
Bit 6
ERI interrupt
request generated
by overrun error
REJ09B0146-0500
Bit 7