HD6417712BPV Renesas Electronics America, HD6417712BPV Datasheet - Page 619

• Manufacturer Part Number: HD6417712BPV
• Description: MPU 1.5/3.3V 0K PB-FREE 256-BGA
• Manufacturer: Renesas Electronics America
• Series: SuperH® SH Ethernetr

Specifications of HD6417712BPV

• Core Processor: SH-3 DSP
• Core Size: 32-Bit
• Speed: 200MHz
• Connectivity: EBI/EMI, Ethernet, FIFO, SCI, SIO
• Peripherals: DMA, POR, WDT
• Number Of I /o: 24
• Program Memory Type: ROMless
• Ram Size: 16K x 8
• Voltage - Supply (vcc/vdd): 1.4 V ~ 1.6 V
• Oscillator Type: External
• Operating Temperature: -20°C ~ 75°C
• Package / Case: 256-BGA
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -
• Program Memory Size: -
• Data Converters: -

Serial Data Transmission: Figure 16.13 shows a sample flowchart for serial transmission. Use
the following procedure for serial data transmission after enabling the SCIF for transmission.
In serial transmission, the SCIF operates as described below.
1. When data is written into SCFTDR, the SCIF transfers the data from SCFTDR to SCFTSR and
starts transmitting. Confirm that the TDFE flag in SCFSR is set to 1 before writing transmit
data to SCFTDR. The number of data bytes that can be written is at least 16 − (transmit trigger
set number).
Write transmit data in SCFTDR and
clear TDFE and TEND bits in
Clear TE bit in SCSCR to 0
Read TEND bit in SCFSR
Read TDFE bit in SCFSR
All data transmitted?
Start transmission
End transmission
Initialization
SCFSR to 0
TEND = 1?
TDFE = 1?
Figure 16.13 Sample Serial Transmission Flowchart
Yes
Yes
Yes
No
No
No
Section 16 Serial Communication Interface with FIFO (SCIF)
1.
2.
3.
SCIF initialization: See figure 16.3, Sample
SCIF Initialization Flowchart.
SCIF status check and transmit data write:
Read SCFSR, check that the TDFE flag is
set to 1, then write transmit data in SCFTDR
and clear the TDFE flag to 0.
Serial transmission continuation procedure:
To continue serial transmission, read 1 from
the TDFE flag to confirm that writing is possible,
then write data in SCFTDR and clear the TDFE
flag to 0.
Rev. 1.00 Dec. 27, 2005 Page 575 of 932
REJ09B0269-0100