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MB90335 Series
22.3.1
Flash Memory Control Status Register (FMCS)
The flash memory control status register (FMCS) controls the flash memory and shows
the operating state of flash memory.
■ Flash Memory Control Status Register (FMCS)
Figure 22.3-2 shows the register configuration of the flash memory control status register (FMCS).
bit
7
6
0000AE
H
R/W
R/W
R/W : Readable/Writable
R
W
X
CM44-10137-6E
Figure 22.3-2 Flash Memory Control Status Register (FMCS)
5
4
3
2
1
R/W
R
W
W
W
: Read only
: Write only
: Undefined
: Initial value
FUJITSU MICROELECTRONICS LIMITED
CHAPTER 22 DUAL OPERATION FLASH MEMORY
0
Initial value
000X0000
B
W
bit 0
Reserved
0
Always set to "0"
bit 1
Reserved
0
Always set to "0"
bit 2
Reserved
0
Always set to "0"
bit 3
Reserved
0
Always set to "0"
bit 4
RDY
Flash memory programming/erasing status bit
0
Programming/erasing (next data programming/erasing disabled)
1
Programming/erasing terminated (next data programming/erasing enabled)
bit 5
WE
Flash memory programming/erasing enable bit
0
Programming/erasing flash memory area disabled
1
Programming/erasing flash memory area enabled
bit 6
Flash memory operation flag bit
RDYINT
Read
Programming/erasing
0
1
Programming/erasing terminated
bit 7
INTE
Flash memory programming/erasing interrupt enable bit
0
Interrupt disabled at end of programming/erasing
1
Interrupt enabled at end of programming/erasing
22.3 Registers of Flash Memory
Reserved bit
Reserved bit
Reserved bit
Reserved bit
Write
This RDYINT bit cleared
No effect
481
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