DF3052BX25V Renesas Electronics America, DF3052BX25V Datasheet - Page 543

• Manufacturer Part Number: DF3052BX25V
• Description: MCU 5V 512K 100-TQFP
• Manufacturer: Renesas Electronics America
• Series: H8® H8/300Hr

Specifications of DF3052BX25V

• Core Processor: H8/300H
• Core Size: 16-Bit
• Speed: 25MHz
• Connectivity: SCI, SmartCard
• Peripherals: DMA, POR, PWM, WDT
• Number Of I /o: 70
• Program Memory Size: 512KB (512K x 8)
• Program Memory Type: FLASH
• Ram Size: 8K x 8
• Voltage - Supply (vcc/vdd): 4.5 V ~ 5.5 V
• Data Converters: A/D 8x10b; D/A 2x8b
• Oscillator Type: Internal
• Operating Temperature: -20°C ~ 75°C
• Package / Case: 100-TQFP, 100-VQFP
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -

Receiving Serial Data: The receiving procedure in smart card mode is the same as the normal
SCI procedure. Figure 14.7 shows a flowchart for receiving.
1. Initialize the smart card interface by the procedure given in Initialization at the beginning of
2. Check that the ORER and PER error flags are cleared to 0 in SSR. If either flag is set, carry out
3. Check that the RDRF flag is set to 1. Repeat steps 2 and 3 until this check passes.
4. Read receive data from RDR.
5. To continue receiving data, clear the RDRF flag to 0 and return to step 2.
6. To terminate receiving, clear the RE bit to 0.
this section.
the necessary error handling, then clear both the ORER and PER flags to 0.
No
No
Read RDR and clear RDRF
Figure 14.7 Receive Flowchart (Example)
All data received ?
Clear RE bit to 0
flag to 0 in SSR
ORER = 0 and
Start receiving
RDRF = 1 ?
PER = 0 ?
Initialize
Start
Yes
Yes
No
Rev. 3.00 Mar 21, 2006 page 513 of 814
Section 14 Smart Card Interface
Error handling
REJ09B0302-0300