DF70844AD80FPV Renesas Electronics America, DF70844AD80FPV Datasheet - Page 893

• Manufacturer Part Number: DF70844AD80FPV
• Description: IC SUPERH MCU FLASH 112LQFP
• Manufacturer: Renesas Electronics America
• Series: SuperH® SH7080r

Specifications of DF70844AD80FPV

• Core Size: 32-Bit
• Program Memory Size: 256KB (256K x 8)
• Core Processor: SH-2
• Speed: 80MHz
• Connectivity: EBI/EMI, FIFO, I²C, SCI, SSU
• Peripherals: DMA, POR, PWM, WDT
• Number Of I /o: 76
• Program Memory Type: FLASH
• Ram Size: 16K x 8
• Voltage - Supply (vcc/vdd): 3 V ~ 5.5 V
• Data Converters: A/D 8x10b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 112-LQFP
• No. Of I/o's: 76
• Ram Memory Size: 16KB
• Cpu Speed: 80MHz
• Digital Ic Case Style: LQFP
• Supply Voltage Range: 3V To 3.6V, 4.5V To 5.5V
• Embedded Interface Type: I2C, SCI
• Rohs Compliant: Yes
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• For Use With: R0K570865S001BE - KIT STARTER FOR SH7086R0K570865S000BE - KIT STARTER FOR SH7086HS0005KCU11H - EMULATOR E10A-USB H8S(X),SH2(A)
• Eeprom Size: -
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant, Lead free / RoHS Compliant

Transmitting Serial Data (Asynchronous Mode):
Figure 16.4 shows a sample flowchart for serial transmission.
Use the following procedure for serial data transmission after enabling the SCIF for transmission.
Write transmit data in SCFTDR,
and read 1 from TDFE flag
Clear TE bit in SCSCR to 0
Read TEND flag in SCFSR
Read TDFE flag in SCFSR
and TEND flag in SCFSR,
Figure 16.4 Sample Flowchart for Transmitting Serial Data
Clear SPBDT to 0 and
All data transmitted?
Start of transmission
End of transmission
set SPBIO to 1
Break output?
then clear to 0
TEND = 1?
TDFE = 1?
Yes
Yes
Yes
Yes
No
No
No
No
Section 16 Serial Communication Interface with FIFO (SCIF)
[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 read 1
from the TDFE and TEND flags, then
clear to 0.
The number of transmit data bytes
that can be written is 16 - (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 SPBDT bit to
0 and set the SPBIO 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 the upper 8 bits of
SCFDR.
Rev. 3.00 May 17, 2007 Page 835 of 1582
REJ09B0181-0300