HD6413007F20 Renesas Electronics America, HD6413007F20 Datasheet - Page 460

• Manufacturer Part Number: HD6413007F20
• Description: IC H8 MCU ROMLESS 5V 100QFP
• Manufacturer: Renesas Electronics America
• Series: H8® H8/300Hr

Specifications of HD6413007F20

• Core Processor: H8/300H
• Core Size: 16-Bit
• Speed: 20MHz
• Connectivity: SCI, SmartCard
• Peripherals: DMA, PWM, WDT
• Number Of I /o: 35
• Program Memory Type: ROMless
• Ram Size: 4K x 8
• Voltage - Supply (vcc/vdd): 2.7 V ~ 5.5 V
• Data Converters: A/D 8x10b; D/A 2x8b
• Oscillator Type: Internal
• Operating Temperature: -20°C ~ 75°C
• Package / Case: 100-QFP
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Eeprom Size: -
• Program Memory Size: -

13. Serial Communication Interface
13.2
13.2.1
RSR is the register that receives serial data.
Bit
Read/Write
The SCI loads serial data input at the RxD pin into RSR in the order received, LSB (bit 0) first,
thereby converting the data to parallel data. When one byte of data has been received, it is
automatically transferred to RDR. The CPU cannot read or write RSR directly.
13.2.2
RDR is the register that stores received serial data.
Bit
Initial value
Read/Write
When the SCI has received one byte of serial data, it transfers the received data from RSR into
RDR for storage, completing the receive operation. RSR is then ready to receive the next data.
This double-buffering allows data to be received continuously.
RDR is a read-only register. Its contents cannot be modified by the CPU. RDR is initialized to
H'00 by a reset and in standby mode.
Rev.5.00 Sep. 12, 2007 Page 430 of 764
REJ09B0396-0500
Register Descriptions
Receive Shift Register (RSR)
Receive Data Register (RDR)
R
0
7
⎯
7
R
6
0
⎯
6
R
0
5
⎯
5
R
0
4
⎯
4
R
3
0
⎯
3
R
2
0
⎯
2
R
1
0
⎯
1
0
R
0
⎯
0