R0K561622S000BE Renesas Electronics America, R0K561622S000BE Datasheet - Page 667

• Manufacturer Part Number: R0K561622S000BE
• Description: KIT STARTER FOR H8SX/1622
• Manufacturer: Renesas Electronics America
• Series: Renesas Starter Kits (RSK)r
• Type: MCUr

Specifications of R0K561622S000BE

• Contents: Board, Cables, CD, Debugger, Power Supply
• Silicon Manufacturer: Renesas
• Features: Coding And Debugging, E10A Emulator, RS232 Serial Connection
• Kit Contents: Board
• Silicon Family Name: H8SX/1622F
• Silicon Core Number: R5F61622N50LGV
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• For Use With/related Products: H8SX/1622
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant, Lead free / RoHS Compliant

16.4
Figure 16.2 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 16.2 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 16 Serial Communication Interface (SCI)
MSB
D7
Rev. 2.00 Sep. 16, 2009 Page 637 of 1036
Parity
bit
1 bit or
none
0/1
Stop bit
1
1 or 2 bits
1
(mark state)
Idle state
1
REJ09B0414-0200