6
6-29
Rev.1.0
(8) Read Lock Bit Status command
The Read Lock Bit Status command is used to verify whether memory blocks are protected
(against write/erase) or not protected. Write the command data H'7171 to any address of the
internal flash memory. Next, read the last even address of the desired block (See Table 6.5.3,
"Target Blocks and the Addresses to Specify."), and you know whether the block you read is
protected or not.
If the FLBST0 (lock bit 0) and FLBST1 (lock bit 1) bits of the data you read are 0, it means that the
memory block is protected. If the FLBST0 (lock bit 0) and FLBST1 (lock bit 1) bits of the data you
read are 1, it means that the memory block is not protected.
■
Lock Bit Status Register (FLBST)
INTERNAL MEMORY
6.5 Programming the Internal Flash Memory
<When reset: Indeterminate>
D
Bit Name
Function
R
W
0
No functions assigned
?
–
1
FLBST0
0: Protected
–
(Lock bit 0)
1: Not protected
2-8
No functions assigned
?
–
9
FLBST1
0: Protected
–
(Lock bit 1)
1: Not protected
(Same content as FLBST0 is output)
10-15
No functions assigned
?
–
The Lock Bit Status Register is a read-only register which contains lock bits independently for
each block.
D0
1
2
3
4
5
6
7
8
9
10
11
12
13
14
D15
FLBST0
FLBST1
Содержание 32172
Страница 20: ... This is a blank page 16 ...
Страница 21: ...1 1 Overview 1 2 Block Diagram 1 3 Pin Functions 1 4 Pin Layout CHAPTER 1 CHAPTER 1 OVERVIEW ...
Страница 44: ...1 1 24 Rev 1 0 This is a blank page Overview 1 4 Pin Layout ...
Страница 58: ...2 2 14 Rev 1 0 This is a blank page CPU 2 6 Data Formats ...
Страница 122: ...4 4 26 Rev 1 0 This is a blank page EIT 4 13 Precautions on EIT ...
Страница 200: ...7 7 6 Rev 1 0 This is a blank page RESET 7 4 Precautions to Be Taken Immediately after Reset ...
Страница 240: ...8 8 40 Rev 1 0 This is a blank page INPUT OUTPUT PORTS AND PIN FUNCTIONS 8 5 Precautions on Input Output Ports ...
Страница 298: ...9 9 58 Rev 1 0 This is a blank page DMAC 9 4 Precautions on Using DMAC ...
Страница 416: ...10 10 118 Rev 1 0 This is a blank page INPUT OUTPUT TIMERS 10 6 TOM Output Related 16 bit Timers ...
Страница 658: ...14 14 16 Rev 1 0 REAL TIME DEBUGGER RTD 14 4 Typical Connection with the Host This is a blank page ...
Страница 718: ...16 16 16 Rev 1 0 This is a blank page D A CONVERTERS 16 3 Functional Description of the D A Converters ...
Страница 766: ...18 18 22 Rev 1 0 WAIT CONTROLLER 18 3 Typical Operation of the Wait Controller This is a blank page ...
Страница 776: ...19 19 10 Rev 1 0 RAM BACKUP MODE 19 4 Exiting RAM Backup Mode Wakeup This is a blank page ...
Страница 777: ...CHAPTER 20 CHAPTER 20 OSCILLATION CIRCUIT 20 1 Oscillator Circuit 20 2 Clock Generator Circuit ...
Страница 782: ...20 20 6 Rev 1 0 OSCILLATION CIRCUIT 20 2 Clock Generator Circuit This is a blank page ...
Страница 856: ...23 23 26 Rev 1 0 This is a blank page ELECTRICAL CHARACTERISTICS 23 6 AC Characteristics ...
Страница 857: ...24 1 A D Conversion Characteristics CHAPTER 24 CHAPTER 24 STANDARD CHARACTERISTICS ...
Страница 859: ...Appendix 1 1 Dimensional Outline Drawing APPENDIX 1 APPENDIX 1 MECHANICAL SPECIFICATIONS ...
Страница 861: ...Appendix 2 1 M32R E Instruction Processing Time APPENDIX 2 APPENDIX 2 INSTRUCTION PROCESSING TIME ...
Страница 865: ...Appendix 3 1 Precautions about Noise APPENDIX 3 APPENDIX 3 PRECAUTIONS ABOUT NOISE ...