HD6413007F20 Renesas Electronics America, HD6413007F20 Datasheet - Page 491

• Manufacturer Part Number: HD6413007F20
• Description: IC H8 MCU ROMLESS 5V 100QFP
• Manufacturer: Renesas Electronics America
• Series: H8® H8/300Hr

Specifications of HD6413007F20

• Core Processor: H8/300H
• Core Size: 16-Bit
• Speed: 20MHz
• Connectivity: SCI, SmartCard
• Peripherals: DMA, PWM, WDT
• Number Of I /o: 35
• Program Memory Type: ROMless
• Ram Size: 4K x 8
• Voltage - Supply (vcc/vdd): 2.7 V ~ 5.5 V
• Data Converters: A/D 8x10b; D/A 2x8b
• Oscillator Type: Internal
• Operating Temperature: -20°C ~ 75°C
• Package / Case: 100-QFP
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Eeprom Size: -
• Program Memory Size: -

• Transmitting Serial Data (Asynchronous Mode): Figure 13.5 shows a sample flowchart for
and clear TDRE flag to 0 in SSR
transmitting serial data and indicates the procedure to follow.
Write transmit data in TDR
Clear DR bit to 0 and set
Clear TE bit to 0 in SCR
Read TDRE flag in SSR
Read TEND flag in SSR
Output break signal?
All data transmitted?
Start transmitting
DDR bit to 1
TEND = 1
TDRE = 1
Initialize
<End>
Figure 13.5 Sample Flowchart for Transmitting Serial Data
Yes
Yes
Yes
Yes
No
No
No
No
(1)
(2)
(3)
(4)
(1)
(2)
(3)
(4)
SCI initialization:
the transmit data output function of the TxD pin is
selected automatically.
After the TE bit is set to 1, one frame of 1s is output,
then transmission is possible.
SCI status check and transmit data write:
read SSR and check that the TDRE flag is set to 1,
then write transmit data in TDR and clear the TDRE
flag to 0.
To continue transmitting serial data:
after checking that the TDRE flag is 1, indicating that
data can be written, write data in TDR, then clear the
TDRE flag to 0. When the DMAC is activated by a
transmit-data-empty interrupt request (TXI) to write
data in TDR, the TDRE flag is checked and cleared
automatically.
To output a break signal at the end of serial
transmission:
set the DDR bit to 1 and clear the DR bit to 0 (DDR
and DR are I/O port registers), then clear the TE bit
to 0 in SCR.
Rev.5.00 Sep. 12, 2007 Page 461 of 764
13. Serial Communication Interface
REJ09B0396-0500