HD6417760BL200AV Renesas Electronics America, HD6417760BL200AV Datasheet - Page 692

• Manufacturer Part Number: HD6417760BL200AV
• Description: SH4 7760, 17 X17 256BGA, LCDC, U
• Manufacturer: Renesas Electronics America
• Series: SuperH® SH7750r

Specifications of HD6417760BL200AV

• Core Processor: SH-4
• Core Size: 32-Bit
• Speed: 200MHz
• Connectivity: Audio Codec, CAN, EBI/EMI, FIFO, I²C, MFI, MMC, SCI, Serial Sound, SIM, SPI, USB
• Peripherals: DMA, LCD, POR, WDT
• Number Of I /o: 69
• Program Memory Type: ROMless
• Ram Size: 48K x 8
• Voltage - Supply (vcc/vdd): 1.4 V ~ 1.6 V
• Data Converters: A/D 4x10b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 256-BGA
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -
• Program Memory Size: -

(4) Serial Data Transmission (Asynchronous Mode)
Figure 17.9 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 SCTSR and
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REJ09B0554-0200
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 128 − (transmit
trigger setting).
Write transmit data in SCFTDR,
Clear TE bit in SCSCR to 0
Read TEND bit in SCFSR
Read TDFE bit in SCFSR
TEND bit in SCFSR to 0
and clear TDFE bit and
Clear SPB2DT to 0 and
All data transmitted?
Start of transmission
End of transmission
set SPB2IO to 1
Break output?
TEND = 1?
TDFE = 1?
Figure 17.9 Sample Serial Transmission Flowchart
Yes
Yes
Yes
Yes
No
No
No
No
[1]
[2]
[3]
[1] SCIF status check and transmit data
[2] Serial transmission continuation
[3] Break output at the end of serial
write:
Read SCFSR and check that the
TDFE flag is set to 1, then write
transmit data to SCFTDR, and clear
the TDFE and TEND flags to 0.
The number of transmit data bytes
that can be written is 128 - (transmit
trigger set number).
procedure:
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
flag to 0.
transmission:
To output a break in serial
transmission, clear the SPB2DT bit to
0 and set the SPB2IO bit to 1 in
SCSPTR, then clear the TE bit in
SCSCR to 0.
In [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 SCTFDR.