HD6417705F133BV Renesas Electronics America, HD6417705F133BV Datasheet - Page 455

• Manufacturer Part Number: HD6417705F133BV
• Description: MPU 3V 0K PB-FREE 208 FP
• Manufacturer: Renesas Electronics America
• Series: SuperH® SH7700r

Specifications of HD6417705F133BV

• Core Processor: SH-3
• Core Size: 32-Bit
• Speed: 133MHz
• Connectivity: EBI/EMI, FIFO, IrDA, SCI, USB
• Peripherals: DMA, POR, PWM, WDT
• Number Of I /o: 105
• Program Memory Type: ROMless
• Ram Size: 32K x 8
• Voltage - Supply (vcc/vdd): 1.4 V ~ 1.6 V
• Data Converters: A/D 4x10b
• Oscillator Type: Internal
• Operating Temperature: -20°C ~ 75°C
• Package / Case: 208-LQFP
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -
• Program Memory Size: -

b. Serial Data Transmission
Figure 16.3 shows a sample flowchart for serial transmission.
Use the following procedure for serial data transmission after enabling the SCIF for transmission.
TDFE bit in SCSSR, then clear to 0
data to SCFTDR, read 1 from
set number) bytes of transmit
Write (64) − transmit trigger
Clear TE bit in SCSCR to 0
Read TEND bit in SCSSR
Read TDFE bit in SCSSR
Set SCPDR and SCPCR
Start of transmission
All data transmitted?
End of transmission
Break output?
TEND = 1?
TDFE = 1?
Figure 16.3 Sample Serial Transmission Flowchart
Yes
Yes
Yes
Yes
No
No
No
No
[1]
[2]
[3]
[1] SCIF status check and transmit data write:
[2] Serial transmission continuation procedure:
[3] Break output at the end of serial transmission:
Read the serial status register (SCSSR) and
check that the TDFE flag is set to 1, then write
transmit data to SCFTDR, read 1 from the TDFE
flag, then clear the flag to 0.
The number of data bytes that can be written is
64 − (transmit trigger set number).
To continue serial transmission, read 1 from the
TDFE flag to confirm that writing is possible, then
write data to SCFTDR, and then clear the TDFE
bit to 0.
To output a break in serial transmission, set the
port SC data register (SCPDR) and port SC
control register (SCPCR), then clear the TE bit in
SCSCR to 0.
In steps 1 and 2, it is possible to ascertain the
number of data bytes that can be written from the
number of transmit data bytes in SCFTDR
indicated by the upper 8 bits of SCFDR.
Rev. 2.00, 09/03, page 407 of 690