DF61657CN35FTV Renesas Electronics America, DF61657CN35FTV Datasheet - Page 609

• Manufacturer Part Number: DF61657CN35FTV
• Description: IC H8SX/1657 MCU FLASH 120TQFP
• Manufacturer: Renesas Electronics America
• Series: H8® H8SX/1600r

Specifications of DF61657CN35FTV

• Core Processor: H8SX
• Core Size: 32-Bit
• Speed: 35MHz
• Connectivity: SCI, SmartCard
• Peripherals: DMA, PWM, WDT
• Number Of I /o: 82
• Program Memory Size: 768KB (768K x 8)
• Program Memory Type: FLASH
• Ram Size: 24K x 8
• Voltage - Supply (vcc/vdd): 3 V ~ 3.6 V
• Data Converters: A/D 8x10b; D/A 2x8b
• Oscillator Type: Internal
• Operating Temperature: -20°C ~ 75°C
• Package / Case: 120-TQFP, 120-VQFP
• For Use With: 3DK1657 - DEV EVAL KIT FOR H8SX/1657
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -

14.4
Figure 14.2 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 communication line is usually held in the mark
state (high level). The SCI monitors the communication 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 transmission and reception.
Operation in Asynchronous Mode
Serial
data
Figure 14.2 Data Format in Asynchronous Communication
1
Start
bit
1 bit
0
(Example with 8-Bit Data, Parity, Two Stop Bits)
LSB
D0
One unit of transfer data (character or frame)
D1
D2
Transmit/receive data
D3
7 or 8 bits
D4
D5
D6
Section 14 Serial Communication Interface (SCI)
MSB
D7
Rev. 2.00 Jun. 28, 2007 Page 583 of 864
Parity
bit
1 bit or
none
0/1
Stop bit
1
1 or 2
bits
1
(mark state)
Idle state
1
REJ09B0341-0200