DF2148BTE20 Renesas Electronics America, DF2148BTE20 Datasheet - Page 458

• Manufacturer Part Number: DF2148BTE20
• Description: IC H8S MCU FLASH 128K 100-QFP
• Manufacturer: Renesas Electronics America
• Series: H8® H8S/2100r

Specifications of DF2148BTE20

• Core Processor: H8S/2000
• Core Size: 16-Bit
• Speed: 20MHz
• Connectivity: I²C, IrDA, SCI, X-Bus
• Peripherals: PWM, WDT
• Number Of I /o: 74
• Program Memory Size: 128KB (128K x 8)
• Program Memory Type: FLASH
• Ram Size: 4K 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: Contains lead / RoHS non-compliant
• Eeprom Size: -
• Other names: HD64F2148BTE20; HD64F2148BTE20

Section 15 Serial Communication Interface (SCI and IrDA)
15.7
IrDA operation can be used with SCI_2. Figure 15.21 shows an IrDA block diagram.
If the IrDA function is enabled using the IrE bit in KBCOMP, the TxD2 and RxD2 pins in SCI_2
are allowed to encode and decode the waveform based on the IrDA standard version 1.0 (function
as the IrTxD and IrRxD pins). Connecting these pins to the infrared data transceiver achieves
infrared data communication based on the system defined by the IrDA standard version 1.0.
In the system defined by the IrDA standard version 1.0, communication is started at a transfer rate
of 9600 bps, which can be modified as required. The IrDA interface provided by this LSI does not
incorporate the capability of automatic modification of the transfer rate; the transfer rate must be
modified through programming.
Rev. 3.00 Mar 21, 2006 page 402 of 788
REJ09B0300-0300
IrDA Operation
TxD2/IrTxD
RxD2/IrRxD
Figure 15.21 IrDA Block Diagram
Pulse encoder
Pulse decoder
KBCOMP
IrDA
RxD
TxD
SCI2