M306H7MG-XXXFP Datasheet, PDF (191/329 Pages) Renesas Technology Corp – SINGLE-CHIP 16-BIT CMOS MICROCOMPUTER with DATA ACQUISITION CONTROLLER

M306H7MG-XXXFP/MC-XXXFP/FGFP
14. EXPANSION FUNCTION
1.Bit composition of a CRC register
1. Address 0016 (=CA3 to 0)
CD15
CD8CD7
CD0
Bit symbol
DAOUT0
DAOUT1
DAOUT2
DAOUT3
DAOUT4
DAOUT5
DAOUT6
DAOUT7
DAOUT8
DAOUT9
DAOUT10
DAOUT11
DAOUT12
DAOUT13
DAOUT14
DAOUT15
Bit name
The code data shift register
write-in bit 0
The code data shift register
write-in bit 1
The code data shift register
write-in bit 2
The code data shift register
write-in bit 3
The code data shift register
write-in bit 4
The code data shift register
write-in bit 5
The code data shift register
write-in bit 6
The code data shift register
write-in bit 7
The code data shift register
write-in bit 8
The code data shift register
write-in bit 9
The code data shift register
write-in bit 10
The code data shift register
write-in bit 11
The code data shift register
write-in bit 12
The code data shift register
write-in bit 13
The code data shift register
write-in bit 14
The code data shift register
write-in bit 15
Function
When write, data is written to "code
data shift register" (Note).
RW
When read, data differs between in
error detection mode and in error
correction mode.
• In error detection mode
(CRCCHANGE=0)
000016 is read after shift end.
When read during shift operation, its
content is indeterminate.
• In error correction mode
(CRCCHANGE=1)
Corrected data is read after the
original data is written in and some
interval of data shift.
Note: Refer to Figure 14.16 Access block diagram for CRC registers.
Rev.2.10 Oct 25, 2006 Page 191 of 326
REJ03B0152-0210