D12312SVTE25 Renesas Electronics America, D12312SVTE25 Datasheet - Page 494

• 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

Section 12 Serial Communication Interface (SCI)
12.3
12.3.1
The SCI can carry out serial communication in two modes: asynchronous mode in which
synchronization is achieved character by character, and synchronous mode in which
synchronization is achieved with clock pulses.
Selection of asynchronous or synchronous mode and the transmission format is made using SMR
as shown in table 12.8. 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 12.9.
Asynchronous 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
• Detection of framing, parity, and overrun errors, and breaks, during reception
• Choice of internal or external clock as SCI clock source
Synchronous Mode
• Transfer format: Fixed 8-bit data
• Detection of overrun errors during reception
• Choice of internal or external clock as SCI clock source
Rev.7.00 Feb. 14, 2007 page 460 of 1108
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combination of these parameters determines the transfer format and character length)
⎯ 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 built-in baud rate
generator is not used)
The SCI operates on the baud rate generator clock and a serial clock is output off-chip
The built-in baud rate generator is not used, and the SCI operates on the input serial clock
Operation
Overview