Renesas RL78 Series User Manual page 757

RL78/G1D
Figure 23-1. Format of Flash Memory CRC Control Register (CRC0CTL)
Address: F02F0H After reset: 00H
Symbol <7>
CRC0CTL CRC0EN
CRC0EN
0
1
FEA5
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
Remark Input the expected CRC operation result value to be used for comparison in the lowest 4 bytes of the flash
memory. Note that the operation range will thereby be reduced by 4 bytes.
R01UH0515EJ0120 Rev.1.20
Dec 16, 2016
R/W
6 5
0 FEA5
Stop the operation.
Start the operation according to HALT instruction execution.
FEA4 FEA3 FEA2
0 0 0
0 0 0
0 0 0
0 0 0
0 0 1
0 0 1
0 0 1
0 0 1
0 1 0
0 1 0
0 1 0
0 1 0
0 1 1
0 1 1
0 1 1
0 1 1
Other than above
CHAPTER 23 SAFETY FUNCTIONS
4 3
FEA4 FEA3
Control of CRC ALU operation
FEA1 FEA0
0 0 00000H to 03FFBH (16 Kbytes - 4 bytes)
0 1 00000H to 07FFBH (32 Kbytes - 4 bytes)
1 0 00000H to 0BFFBH (48 Kbytes - 4 bytes)
1 1 00000H to 0FFFBH (64 Kbytes - 4 bytes)
0 0 00000H to 13FFBH (80 Kbytes - 4 bytes)
0 1 00000H to 17FFBH (96 Kbytes - 4 bytes)
1 0 00000H to 1BFFBH (112 Kbytes - 4 bytes)
1 1 00000H to 1FFFBH (128 Kbytes - 4 bytes)
0 0 00000H to 23FFBH (144 Kbytes - 4 bytes)
0 1 00000H to 27FFBH (160 Kbytes - 4 bytes)
1 0 00000H to 2BFFBH (176 Kbytes - 4 bytes)
1 1 00000H to 2FFFBH (192 Kbytes - 4 bytes)
0 0 00000H to 33FFBH (208 Kbytes - 4 bytes)
0 1 00000H to 37FFBH (224 Kbytes - 4 bytes)
1 0 00000H to 3BFFBH (240 Kbytes - 4 bytes)
1 1 00000H to 3FFFBH (256 Kbytes - 4 bytes)
Setting prohibited
2 1
FEA2 FEA1
High-speed CRC operation range
0
FEA0
736