HD64F2168VTE33 Renesas Electronics America, HD64F2168VTE33 Datasheet - Page 472

• Manufacturer Part Number: HD64F2168VTE33
• Manufacturer: Renesas Electronics America

Specifications of HD64F2168VTE33

• Cpu Family: H8S
• Device Core Size: 16/32Bit
• Frequency (max): 33MHz
• Interface Type: I2C/IrDA/SCI
• Program Memory Type: Flash
• Program Memory Size: 256KB
• Total Internal Ram Size: 40KB
• # I/os (max): 106
• Number Of Timers - General Purpose: 5
• Operating Supply Voltage (typ): 3.3V
• Operating Supply Voltage (max): 3.6V
• Operating Supply Voltage (min): 3V
• On-chip Adc: 8-chx10-bit
• On-chip Dac: 2-chx8-bit
• Instruction Set Architecture: CISC
• Operating Temp Range: -20C to 75C
• Operating Temperature Classification: Commercial
• Mounting: Surface Mount
• Pin Count: 144
• Package Type: TQFP
• Lead Free Status / Rohs Status: Not Compliant

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.
Rev. 3.00, 03/04, page 430 of 830
4. Serial transmission (LSB first)
3. Read from CRCDOR
1. Write H'83 to CRCCR
4. Serial transmission (MSB first)
CRCCR
CRCDORH
CRCDORL
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 14.47 MSB-First Data Transmission
Figure 14.46 LSB-First Data Transmission
1
0
0
0
1
Data
CRCDOR clearing
0
0
0
CRCDOR clearing
0
1
CRC code
0
0
0
0
1
0
0
1
7
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
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
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
0
0
0
0
+ X
1
0
1
1
0
0
12
1
F
+ X
1
Output
5
1
0
+ 1