Renesas M16C/29 Series Hardware Manual page 327

M16C/29 Group
CRC data register
(b15) (b8)
b7 b0 b7
CRC input register
b7
CRC mode register
b7
CRC snoop address register
(b15) (b8)
b7 b0 b7
Figure 18.2. CRCD, CRCIN, CRCMR, CRCSAR Register
Rev.1.00 Nov 01,2004
REJ09B0101-0100Z
Symbol
b0
CRCD
CRC calculation result output
b0 Symbol
CRCIN
Data input
b0 Symbol
CRCMR
Bit symbol Bit symbol
CRCPS
CRCPS
Nothing is assigned.
(b6-b1)
Write "0" when writing to this bit. The value is indeterminate if read.
CRCMS CRCMS
Symbol
b0
CRCSAR
Bit symbol
CRCSAR9-0
(b13-b10)
CRCSR
CRCSW
page 307 of 402
Address
03BD to 03BC Indeterminate
16 16
Function
Address
03BE Indeterminate
16
Function
Address
03B6
16
Bit name Bit name
0: X 0: X
CRC mode polynomial CRC mode polynomial
selection bit selection bit 1: X 1: X
Nothing is assigned. Write "0" when writing to this bit.
The value is indeterminate if read.
0: LSB first 0: LSB first
CRC mode selection bit CRC mode selection bit
1: MSB first 1: MSB first
Address
03B5 to 03B4 00XXXX?? ????????
16 16
Bit name
CRC mode polynomial
SFR address to snoop
selection bit
Nothing is assigned. Write "0" when writing to this bit.
The value is indeterminate if read.
CRC Snoop on read 0: Disabled
enable bit 1: Enabled
CRC Snoop on write 0: Disabled
enable bit 1: Enabled
18. CRC Calculation Circuit
After reset
Setting range
0000 to FFFF
16
After reset
Setting range
00 to FF
16 16
After reset
0XXXXXX0
2
Function Function
16 16 12 12 5 5
+X +X +X +X +1 (CRC-CCITT) +1 (CRC-CCITT)
16 16 15 15 2 2
+X +X +X +X +1 (CRC-16) +1 (CRC-16)
After reset
16
Function Function
RW
RW
16
RW
RW
RW RW
RW RW
RW RW
RW RW
RW
RW
RW