DF2398TE20 Renesas Electronics America, DF2398TE20 Datasheet - Page 554

• Manufacturer Part Number: DF2398TE20
• Description: IC H8S MCU FLASH 256K 120TQFP
• Manufacturer: Renesas Electronics America
• Series: H8® H8S/2300r

Specifications of DF2398TE20

• Core Processor: H8S/2000
• Core Size: 16-Bit
• Speed: 20MHz
• Connectivity: SCI, SmartCard
• Peripherals: DMA, POR, PWM, WDT
• Number Of I /o: 87
• Program Memory Size: 256KB (256K 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: 120-TQFP, 120-VQFP
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Eeprom Size: -
• Other names: HD64F2398TE20; HD64F2398TE20

15.3
15.3.1
The main functions of the Smart Card interface are as follows.
• One frame consists of 8-bit data plus a parity bit.
• In transmission, a guard time of at least 2 etu (Elementary Time Unit: the time for transfer of 1 bit) is left between the
• If a parity error is detected during reception, a low error signal level is output for one etu period, 10.5 etu after the start
• If the error signal is sampled during transmission, the same data is transmitted automatically after the elapse of 2 etu or
• Only asynchronous communication is supported; there is no clocked synchronous communication function.
15.3.2
Figure 15-2 shows a schematic diagram of Smart Card interface related pin connections.
In communication with an IC card, since both transmission and reception are carried out on a single data transmission line,
the TxD pin and RxD pin should be connected with the LSI pin. The data transmission line should be pulled up to the V
power supply with a resistor.
When the clock generated on the Smart Card interface is used by an IC card, the SCK pin output is input to the CLK pin
of the IC card. No connection is needed if the IC card uses an internal clock.
LSI port output is used as the reset signal.
Other pins must normally be connected to the power supply or ground.
Note: If an IC card is not connected, and the TE and RE bits are both set to 1, closed transmission/reception is possible,
Rev.6.00 Oct.28.2004 page 524 of 1016
REJ09B0138-0600H
end of the parity bit and the start of the next frame.
bit.
longer.
enabling self-diagnosis to be carried out.
Operation
Overview
Pin Connections
Figure 15-2 Schematic Diagram of Smart Card Interface Pin Connections
Connected equipment
H8S/2357 Group
Rx (port)
SCK
RxD
TxD
Data line
Clock line
Reset line
V
CC
I/O
CLK
RST
IC card
CC