DF2398TE20 Renesas Electronics America, DF2398TE20 Datasheet - Page 517

• 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

14.3
14.3.1
The SCI can carry out serial communication in two modes: asynchronous mode in which synchronization is achieved
character by character, and clocked synchronous mode in which synchronization is achieved with clock pulses.
Selection of asynchronous or clocked synchronous mode and the transmission format is made using SMR as shown in
table 14-8. The SCI clock is determined by a combination of the C/A bit in SMR and the CKE1 and CKE0 bits in SCR, as
shown in table 14-9.
Asynchronous Mode
Clocked Synchronous Mode
Data length: Choice of 7 or 8 bits
Choice of parity addition, multiprocessor bit addition, and addition of 1 or 2 stop bits (the combination of these
parameters determines the transfer format and character length)
Detection of framing, parity, and overrun errors, and breaks, during reception
Choice of internal or external clock as SCI clock source
Transfer format: Fixed 8-bit data
Detection of overrun errors during reception
Choice of internal or external clock as SCI clock source
When internal clock is selected:
When external clock is selected:
When internal clock is selected:
When external clock is selected:
The SCI operates on the baud rate generator clock and a clock with the same frequency as the bit rate can be output
A clock with a frequency of 16 times the bit rate must be input (the on-chip baud rate generator is not used)
The SCI operates on the baud rate generator clock and a serial clock is output off-chip
The on-chip baud rate generator is not used, and the SCI operates on the input serial clock
Operation
Overview
Rev.6.00 Oct.28.2004 page 487 of 1016
REJ09B0138-0600H