DF3048BVX25WV Renesas Electronics America, DF3048BVX25WV Datasheet - Page 514

• Manufacturer Part Number: DF3048BVX25WV
• Description: MCU 3/5V 128K PB-FREE 100-TQFP
• Manufacturer: Renesas Electronics America
• Series: H8® H8/300Hr

Specifications of DF3048BVX25WV

• Core Processor: H8/300H
• Core Size: 16-Bit
• Speed: 25MHz
• Connectivity: SCI, SmartCard
• Peripherals: DMA, PWM, WDT
• Number Of I /o: 70
• Program Memory Size: 128KB (128K x 8)
• Program Memory Type: FLASH
• Ram Size: 4K x 8
• Voltage - Supply (vcc/vdd): 3 V ~ 3.6 V
• Data Converters: A/D 8x10b; D/A 2x8b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 100-TQFP, 100-VQFP
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -

Section 13 Serial Communication Interface
Rev. 3.00 Sep 27, 2006 page 486 of 872
REJ09B0325-0300
Set TE or RE bit to 1 in SCR
Set CKE1 and CKE0 bits
Transmitting or receiving
Set RIE, TIE, TEIE, and
in SCR (leaving TE and
MPIE bits as necessary
Select communication
Clear TE and RE bits
RE bits cleared to 0)
Start of initialization
Set value in BRR
format in SMR
1 bit interval
to 0 in SCR
elapsed?
Yes
Figure 13.4 Sample Flowchart for SCI Initialization
Wait
No
1
2
3
4
1.
2.
3.
4.
Select the clock source in SCR. Clear the RIE, TIE, TEIE,
MPIE, TE, and RE bits to 0. If clock output is selected in
asynchronous mode, clock output starts immediately after
the setting is made in SCR.
Select the communication format in SMR.
Write the value corresponding to the bit rate in BRR.
This step is not necessary when an external clock is used.
Wait for at least the interval required to transmit or receive
1 bit, then set the TE or RE bit to 1 in SCR. Set the RIE,
TIE, TEIE, and MPIE bits as necessary. Setting the TE
or RE bit enables the SCI to use the TxD or RxD pin.