DF2117VLP20V Renesas Electronics America, DF2117VLP20V Datasheet - Page 469

• Manufacturer Part Number: DF2117VLP20V
• Description: IC H8S/2117 MCU FLASH 145TFLGA
• Manufacturer: Renesas Electronics America
• Series: H8® H8S/2100r

Specifications of DF2117VLP20V

• Core Processor: H8S/2600
• Core Size: 16-Bit
• Speed: 20MHz
• Connectivity: FIFO, I²C, LPC, SCI, SmartCard
• Peripherals: POR, PWM, WDT
• Number Of I /o: 112
• Program Memory Size: 160KB (160K x 8)
• Program Memory Type: FLASH
• Ram Size: 8K x 8
• Voltage - Supply (vcc/vdd): 3 V ~ 3.6 V
• Data Converters: A/D 16x10b
• Oscillator Type: External
• Operating Temperature: -20°C ~ 75°C
• Package / Case: 145-TFLGA
• For Use With: HS0005KCU11H - EMULATOR E10A-USB H8S(X),SH2(A)3DK2166 - DEV EVAL KIT H8S/2166
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -

15.4
Figure 15.2 shows the general format for asynchronous serial communication. One frame consists
of a start bit (low level), followed by transmit/receive data, a parity bit, and finally stop bits (high
level). In asynchronous serial communication, the transmission line is usually held in the mark
state (high level). The SCI monitors the transmission line, and when it goes to the space state (low
level), recognizes a start bit and starts serial communication. Inside the SCI, the transmitter and
receiver are independent units, enabling full-duplex communication. Both the transmitter and the
receiver also have a double-buffered structure, so that data can be read or written during
transmission or reception, enabling continuous data transfer and reception.
Serial
data
Operation in Asynchronous Mode
1
Start
bit
1 bit
Figure 15.2 Data Format in Asynchronous Communication
0
LSB
D0
(Example with 8-Bit Data, Parity, Two Stop Bits)
One unit of transfer data (character or frame)
D1
D2
Transmit/receive data
D3
7 or 8 bits
D4
D5
Section 15 Serial Communication Interface (SCI)
D6
MSB
D7
Rev. 3.00 Sep. 28, 2009 Page 423 of 910
Parity
bit
1 bit or
none
0/1
Stop bit
1
1 or 2 bits
1
(mark state)
Idle state
REJ09B0350-0300
1