HD6413007F20 Renesas Electronics America, HD6413007F20 Datasheet - Page 532

• 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: -

14. Smart Card Interface
Transmitting Serial Data: As data transmission in smart card mode involves error signal
sampling and retransmission processing, the processing procedure is different from that for the
normal SCI. Figure 14.5 shows a sample transmission processing flowchart.
1. Perform smart card interface mode initialization as described in Initialization above.
2. Check that the ERS error flag is cleared to 0 in SSR.
3. Repeat steps 2 and 3 until it can be confirmed that the TEND flag is set to 1 in SSR.
4. Write the transmit data in TDR, clear the TDRE flag to 0, and perform the transmit operation.
5. To continue transmitting data, go back to step 2.
6. To end transmission, clear the TE bit to 0.
The above processing may include interrupt handling DMA transfer.
If transmission ends and the TEND flag is set to 1 while the TIE bit is set to 1 and interrupt
requests are enabled, a transmit-data-empty interrupt (TXI) will be requested. If an error occurs in
transmission and the ERS flag is set to 1 while the RIE bit is set to 1 and interrupt requests are
enabled, a transmit/receive-error interrupt (ERI) will be requested.
The timing of TEND flag setting depends on the GM bit in SMR (see figure 14.4).
If the TXI interrupt activates the DMAC, the number of bytes designated in the DMAC can be
transmitted automatically, including automatic retransmission.
For details, see Interrupt Operations and Data Transfer by DMAC in this section.
Rev.5.00 Sep. 12, 2007 Page 502 of 764
REJ09B0396-0500
(1) GM = 0
(2) GM = 1
Serial data
The TEND flag is cleared to 0.
TEND
TEND
Ds
Figure 14.4 Timing of TEND Flag Setting
11.0 etu
12.5 etu
Dp
Guard time
DE