HD6417708RF100A Renesas Electronics America, HD6417708RF100A Datasheet - Page 389

• Manufacturer Part Number: HD6417708RF100A
• Description: IC SUPERH MPU ROMLESS 144LQFP
• Manufacturer: Renesas Electronics America
• Series: SuperH® SH7700r

Specifications of HD6417708RF100A

• Core Processor: SH-2
• Core Size: 32-Bit
• Speed: 100MHz
• Connectivity: EBI/EMI, SCI, SmartCard
• Peripherals: POR, WDT
• Number Of I /o: 8
• Program Memory Type: ROMless
• Voltage - Supply (vcc/vdd): 3.15 V ~ 3.6 V
• Oscillator Type: External
• Operating Temperature: -20°C ~ 75°C
• Package / Case: 144-LQFP
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Eeprom Size: -
• Ram Size: -
• Program Memory Size: -
• Data Converters: -

Transmitting Serial Data (Asynchronous Mode): Figure 13.5 shows a sample flowchart for
transmitting serial data. The procedure for transmitting serial data is:
1. SCI status check and transmit data write: Read the serial status register (SCSSR), check that
2. To continue transmitting serial data: Read the TDRE bit to check whether it is safe to write (if
3. To output a break at the end of serial transmission: Clear the SPB0DT bit in the SCSPTR, set
the TDRE bit is 1, then write transmit data in the transmit data register (SCTDR) and clear
TDRE to 0.
it reads 1); if so, write data in SCTDR, then clear TDRE to 0.
the SPB0IO bit to 1 and then clear the TE bit to 0 in SCSCR.
Note: Numbers in parentheses refer to the preceding procedure.
Figure 13.4 Sample Flowchart for SCI Initialization
Clear TE and RE bits in SCSCR to 0
Set CKE1 and CKE0 bits in SCSCR
Set TE and RE bits in SCSCR to 1
and set RIE, TEIE, and MPIE bits
Select transmit/receive
(TE and RE bits are 0)
Set value to SCBRR
format in SCSMR
interval elapsed?
Has a 1-bit
Initialize
End
Yes
Wait
No
(1)
(2)
(3)
(4)
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