DF61654N50FTV Renesas Electronics America, DF61654N50FTV Datasheet - Page 685

• Manufacturer Part Number: DF61654N50FTV
• Description: IC H8SX/1654 MCU FLASH 120TQFP
• Manufacturer: Renesas Electronics America
• Series: H8® H8SX/1600r

Specifications of DF61654N50FTV

• Core Processor: H8SX
• Core Size: 32-Bit
• Speed: 50MHz
• Connectivity: I²C, IrDA, SCI, SmartCard, USB
• Peripherals: DMA, PWM, WDT
• Number Of I /o: 75
• Program Memory Size: 512KB (512K x 8)
• Program Memory Type: FLASH
• Ram Size: 40K x 8
• Voltage - Supply (vcc/vdd): 3 V ~ 3.6 V
• Data Converters: A/D 8x10b; D/A 2x8b
• Oscillator Type: External
• Operating Temperature: -20°C ~ 75°C
• Package / Case: 120-TQFP, 120-VQFP
• For Use With: HS0005KCU11H - EMULATOR E10A-USB H8S(X),SH2(A)3DK1657 - DEV EVAL KIT FOR H8SX/1657
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -

14.11.3 CRC Operation Circuit Operation
The CRC operation circuit generates a CRC code for LSB-first/MSB-first communications. An
example in which a CRC code for hexadecimal data H'F0 is generated using the X
polynomial with the G1 and G0 bits in CRCCR set to B'11 is shown below.
4. Serial transmission (LSB first)
3. Read from CRCDOR
1. Write H'83 to CRCCR
CRCCR
CRCDORH
CRCDORL
4. Serial transmission (MSB first)
3. Read from CRCDOR
1. Write H'87 to CRCCR
Output
CRCCR
CRCDORH
CRCDORL
7
1
CRC code = H'F78F
1
CRC code = H'EF1F
F
1
7
1
0
0
7
7
1
0
0
7
1
7
1
0
0
0
0
0
0
0
1
0
0
0
0
0
0
F
1
1
0
0
0
7
0
0
0
Figure 14.45 MSB-First Data Transmission
Figure 14.44 LSB-First Data Transmission
1
1
0
0
0
Data
CRCDOR clearing
0
0
0
CRCDOR clearing
0
1
CRC code
0
0
0
0
1
0
0
7
1
0
1
0
0
1
0
0
0
0
1
0
0
0
0
0
8
1
0
0
0
0
0
0
0
0
1
7
Section 14 Serial Communication Interface (SCI, IrDA, CRC)
1
2. Write H'F0 to CRCDIR
CRCDIR
CRCDORH
CRCDORL
1
E
2. Write H'F0 to CRCDIR
CRCDIR
CRCDORH
CRCDORL
1
1
F
1
0
1
0
1
7
7
1
1
1
1
7
1
7
7
1
1
0
Rev.1.00 Sep. 08, 2005 Page 635 of 966
1
1
0
F
1
1
1
1
0
F
1
1
0
CRC code
1
1
0
1
1
0
1
1
0
Data
1
7
0
1
0
1
0
0
1
CRC code generation
0
0
0
1
1
0
1
1
CRC code generation
1
0
0
0
1
1
0
0
1
1
0
1
0
1
1
0
1
1
16
REJ09B0219-0100
0
0
0
0
+ X
1
0
1
1
0
0
12
1
F
+ X
1
Output
5
1
0
+ 1