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H8SX1663 Datasheet(PDF) 798 Page - Renesas Technology Corp

Part # H8SX1663
Description  Renesas 32-Bit CISC Microcomputer H8SX Family / H8SX/1600 Series
PDF  1158 Pages
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Manufacturer  RENESAS [Renesas Technology Corp]
Direct Link  http://www.renesas.com
Logo RENESAS - Renesas Technology Corp

H8SX1663 Datasheet(HTML) 798 Page - Renesas Technology Corp

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Section 15 Serial Communication Interface (SCI, IrDA, CRC)
Rev.1.00 Jun. 07, 2006 Page 746 of 1102
REJ09B0294-0100
Bit
Bit Name
Initial
Value
R/W
Description
1
0
G1
G0
0
0
R/W
R/W
CRC Generating Polynomial Select:
Selects the polynomial.
00: Reserved
01: X
8 + X2 + X + 1
10: X
16 + X15 + X2 + 1
11: X
16 + X12 + X5 + 1
(2) CRC Data Input Register (CRCDIR)
CRCDIR is an 8-bit readable/writable register, to which the bytes to be CRC-operated are written.
The result is obtained in CRCDOR.
Bit
Bit Name
Initial Value
R/W
7
0
R/W
6
0
R/W
5
0
R/W
4
0
R/W
3
0
R/W
2
0
R/W
1
0
R/W
0
0
R/W
(3) CRC Data Output Register (CRCDOR)
CRCDOR is a 16-bit readable/writable register that contains the result of CRC operation when the
bytes to be CRC-operated are written to CRCDIR after CRCDOR is cleared. When the CRC
operation result is additionally written to the bytes to which CRC operation is to be performed, the
CRC operation result will be H'0000 if the data contains no CRC error. When bits 1 and 0 in
CRCCR (G1 and G0 bits) are set to 0 and 1, respectively, the lower byte of this register contains
the result.
Bit
Bit Name
Initial Value
R/W
7
0
R/W
6
0
R/W
5
0
R/W
4
0
R/W
3
0
R/W
2
0
R/W
1
0
R/W
0
0
R/W
Bit
Bit Name
Initial Value
R/W
7
0
R/W
6
0
R/W
5
0
R/W
4
0
R/W
3
0
R/W
2
0
R/W
1
0
R/W
0
0
R/W



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