HD6417750SBP200 Renesas Electronics America, HD6417750SBP200 Datasheet - Page 796

• Manufacturer Part Number: HD6417750SBP200
• Description: IC SUPERH MPU ROMLESS 256BGA
• Manufacturer: Renesas Electronics America
• Series: SuperH® SH7750r

Specifications of HD6417750SBP200

• Core Processor: SH-4
• Core Size: 32-Bit
• Speed: 200MHz
• Connectivity: EBI/EMI, FIFO, SCI, SmartCard
• Peripherals: DMA, POR, WDT
• Number Of I /o: 28
• Program Memory Type: ROMless
• Ram Size: 24K x 8
• Voltage - Supply (vcc/vdd): 1.8 V ~ 2.07 V
• Oscillator Type: External
• Operating Temperature: -20°C ~ 75°C
• Package / Case: 256-BGA
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Eeprom Size: -
• Program Memory Size: -
• Data Converters: -

Section 15 Serial Communication Interface (SCI)
Serial Data Transmission (Synchronous Mode): Figure 15.19 shows a sample flowchart for
serial transmission.
Use the following procedure for serial data transmission after enabling the SCI for transmission.
Rev.7.00 Oct. 10, 2008 Page 710 of 1074
REJ09B0366-0700
Write transmit data to SCTDR1
Read TDRE flag in SCSSR1
Read TEND flag in SCSSR1
Clear TE bit in SCSCR1 to 0
Start of transmission
All data transmitted?
and clear TDRE flag
in SCSSR1 to 0
TDRE = 1?
TEND = 1?
End
Figure 15.19 Sample Serial Transmission Flowchart
Yes
Yes
Yes
No
No
No
1. SCI status check and transmit
2. To continue serial transmission,
data write: Read SCSSR1 and
check that the TDRE flag is set to
1, then write transmit data to
SCTDR1 and clear the TDRE flag
to 0.
be sure to read 1 from the TDRE
flag to confirm that writing is
possible, then write data to
SCTDR1, and then clear the
TDRE flag to 0. (Checking and
clearing of the TDRE flag is
automatic when the direct
memory access controller
(DMAC) is activated by a
transmit-data-empty interrupt
(TXI) request, and data is written
to SCTDR1.)