D12312SVTE25 Renesas Electronics America, D12312SVTE25 Datasheet - Page 555

• Manufacturer Part Number: D12312SVTE25
• Description: MCU 3V 0K 100-TQFP
• Manufacturer: Renesas Electronics America
• Series: H8® H8S/2300r

Specifications of D12312SVTE25

• Core Processor: H8S/2000
• Core Size: 16-Bit
• Speed: 25MHz
• Connectivity: SCI, SmartCard
• Peripherals: POR, PWM, WDT
• Number Of I /o: 70
• Program Memory Type: ROMless
• Ram Size: 8K x 8
• Voltage - Supply (vcc/vdd): 2.7 V ~ 3.6 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: Contains lead / RoHS non-compliant
• Eeprom Size: -
• Program Memory Size: -
• Other names: HD6412312SVTE25; HD6412312SVTE25

Serial Data Reception (Except Block Transfer Mode): Data reception in smart card mode uses
the same processing procedure as for the normal SCI. Figure 13.7 shows an example of the
transmission processing flow.
[1] Perform smart card interface mode initialization as described above in Initialization.
[2] Check that the ORER flag and PER flag in SSR are cleared to 0. If either is set, perform the
[3] Repeat steps [2] and [3] until it can be confirmed that the RDRF flag is set to 1.
[4] Read the receive data from RDR.
[5] When receiving data continuously, clear the RDRF flag to 0 and go back to step [2].
[6] To end reception, clear the RE bit to 0.
appropriate receive error handling, then clear both the ORER and the PER flag to 0.
No
No
RDRF flag in SSR to 0
Figure 13.7 Sample Reception Flowchart
Read RDR and clear
All data received?
Start of reception
Clear RE bit to 0
ORER = 0 and
Initialization
RDRF = 1?
PER = 0?
Start
Yes
Yes
Yes
No
Rev.7.00 Feb. 14, 2007 page 521 of 1108
Section 13 Smart Card Interface
Error handling
REJ09B0089-0700