M30620FCPFP#U7C Renesas Electronics America, M30620FCPFP#U7C Datasheet - Page 270
M30620FCPFP#U7C
Manufacturer Part Number
M30620FCPFP#U7C
Description
IC M16C MCU FLASH 128K 100QFP
Manufacturer
Renesas Electronics America
Series
M16C™ M16C/60r
Datasheets
1.QSK-62P_PLUS.pdf
(103 pages)
2.M30622SAFPU5.pdf
(308 pages)
3.M30620SPGPU3C.pdf
(423 pages)
Specifications of M30620FCPFP#U7C
Core Processor
M16C/60
Core Size
16-Bit
Speed
24MHz
Connectivity
I²C, IEBus, UART/USART
Peripherals
DMA, WDT
Number Of I /o
85
Program Memory Size
128KB (128K x 8)
Program Memory Type
FLASH
Ram Size
10K x 8
Voltage - Supply (vcc/vdd)
2.7 V ~ 5.5 V
Data Converters
A/D 26x10b; D/A 2x8b
Oscillator Type
Internal
Operating Temperature
-40°C ~ 85°C
Package / Case
100-QFP
For Use With
867-1000 - KIT QUICK START RENESAS 62PR0K33062PS001BE - R0K33062P STARTER KITR0K33062PS000BE - KIT EVAL STARTER FOR M16C/62PM3062PT3-CPE-3 - EMULATOR COMPACT M16C/62P/30P
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Eeprom Size
-
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Part Number:
M30620FCPFP#U7CM30620FCPFP#D3C
Manufacturer:
Renesas Electronics America
Quantity:
10 000
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M16C/62P Group (M16C/62P, M16C/62PT)
Rev.2.41
REJ09B0185-0241
20. CRC Calculation
The Cyclic Redundancy Check (CRC) operation detects an error in data blocks. The microcomputer uses a generator
polynomial of CRC_CCITT (X
The CRC code consists of 16 bits which are generated for each data block in given length, separated in 8 bit units.
After the initial value is set in the CRCD register, the CRC code is set in that register each time one byte of data is
written to the CRCIN register. CRC code generation for one-byte data is finished in two cycles.
Figure 20.1 shows the CRC Circuit Block Diagram. Figure 20.2 shows the CRC-related Registers.
Figure 20.3 shows the Calculation Example using the CRC Operation.
Figure 20.1
Figure 20.2
CRC Data Register
CRC Input Register
(b15)
b7
b7
Jan 10, 2006
CRCD and CRCIN Registers
CRC Circuit Block Diagram
(b8)
b0
b0
b7
When data is w ritten to the CRCIN register after setting the initial value in
the CRCD register, the CRC code can be read out from the CRCD
register.
Data input
Page 253 of 390
16
+ X
CRCIN register
12
b0
+ X
CRC code generating circuit
5
Eight low-order bits
+ 1) to generate CRC code.
Data bus high-order
Data bus low-order
Symbol
CRCD
Symbol
CRCIN
CRCD register
X
16
Function
Function
+ X
12
+ X
5
+ 1
03BDh to 03BCh
Address
Address
03BEh
Eight high-order bits
0000h to FFFFh
Setting Range
Setting Range
Indeterminate
Indeterminate
After Reset
After Reset
00h to FFh
20. CRC Calculation
RW
RW
RW
RW
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