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DEMO9S08DZ60
Chapter 4 Memory
MC9S08DZ60 Series Data Sheet, Rev. 4
66
Freescale Semiconductor
4.5.11.5
Flash and EEPROM Status Register (FSTAT)
0x1B
0x2800–0xFFFF
54K
72
0x1A
0x2200–0xFFFF
55.5K
74
0x19
0x1C00–0xFFFF
57K
76
0x18–0x00
0x0000–0xFFFF
64K
86
7
6
5
4
3
2
1
0
R
FCBEF
FCCF
FPVIOL
FACCERR
0
FBLANK
0
0
W
Reset
1
1
0
0
0
0
0
0
= Unimplemented or Reserved
Figure 4-9. Flash and EEPROM Status Register (FSTAT)
Table 4-15. FSTAT Register Field Descriptions
Field
Description
7
FCBEF
Command Buffer Empty Flag — The FCBEF bit is used to launch commands. It also indicates that the
command buffer is empty so that a new command sequence can be executed when performing burst
programming. The FCBEF bit is cleared by writing a 1 to it or when a burst program command is transferred to
the array for programming. Only burst program commands can be buffered.
0 Command buffer is full (not ready for additional commands).
1 A new burst program command can be written to the command buffer.
command buffer is empty so that a new command sequence can be executed when performing burst
programming. The FCBEF bit is cleared by writing a 1 to it or when a burst program command is transferred to
the array for programming. Only burst program commands can be buffered.
0 Command buffer is full (not ready for additional commands).
1 A new burst program command can be written to the command buffer.
6
FCCF
Command Complete Flag — FCCF is set automatically when the command buffer is empty and no command
is being processed. FCCF is cleared automatically when a new command is started (by writing 1 to FCBEF to
register a command). Writing to FCCF has no meaning or effect.
0 Command in progress
1 All commands complete
is being processed. FCCF is cleared automatically when a new command is started (by writing 1 to FCBEF to
register a command). Writing to FCCF has no meaning or effect.
0 Command in progress
1 All commands complete
5
FPVIOL
Protection Violation Flag — FPVIOL is set automatically when a command that attempts to erase or program
a location in a protected block is launched (the erroneous command is ignored). FPVIOL is cleared by writing a
1 to FPVIOL.
0 No protection violation.
1 An attempt was made to erase or program a protected location.
a location in a protected block is launched (the erroneous command is ignored). FPVIOL is cleared by writing a
1 to FPVIOL.
0 No protection violation.
1 An attempt was made to erase or program a protected location.
Table 4-14. Flash Block Protection (continued)
FPS
Address Area Protected
Memory Size Protected (bytes)
Number of Sectors Protected