2 flash memory control status register (fmcs), Flash memory control status register (fmcs) – FUJITSU F2MC-8L F202RA User Manual
Page 375
359
CHAPTER 17 FLASH MEMORY
17.2
Flash Memory Control Status Register (FMCS)
The flash memory control status register (FMCS), together with the flash memory
interface circuit, is used to write data to and erase data from the flash memory.
■
Flash Memory Control Status Register (FMCS)
Figure 17.2-1 Flash Memory Control Status Register (FMCS)
Addre
ss
0079
H
b
it7
INTE
R/W
b
it6
RDYINT
R/W
b
it5
WE
R/W
b
it4
RDY
R
b
it
3
b
it2
b
it1
b
it0
Initi
a
l v
a
l
u
e
000X----
B
WE
RDY
0
1
RDYINT
0
1
0
1
Un
us
ed
b
it
Re
a
ding / Writing h
as
no effect.
Write en
ab
le
b
it
Di
sab
le
s
d
a
t
a
to
b
e written into/er
as
ed from fl
as
h memory.
En
ab
le
s
d
a
t
a
to
b
e written into/er
as
ed from fl
as
h memory.
INTE
0
1
C
aus
ing
a
n interr
u
pt to the CPU to
b
e gener
a
ted
b
it
En
ab
le
s
a
n interr
u
pt when d
a
t
a
writing/er
as
ing i
s
completed.
Di
sab
le
s
a
n interr
u
pt when d
a
t
a
writing/er
as
ing i
s
completed.
Fl
as
h memory oper
a
tion
s
t
a
te indic
a
tion
b
it
D
a
t
a
i
s
b
eing written/er
as
ed.
D
a
t
a
writing/er
as
ing h
as
b
een completed.
(An interr
u
pt re
qu
e
s
t i
s
gener
a
ted.)
Re
a
DY
b
it
(for en
ab
ling d
a
t
a
to
b
e written into/er
as
ed from fl
as
h memory)
D
a
t
a
i
s
b
eing written or er
as
ed.
D
a
t
a
writing/er
as
ing h
as
b
een completed.
(
Subs
e
qu
ent d
a
t
a
c
a
n
b
e written/er
as
ed.)
t
IN
S
T
: In
s
tr
u
ction cycle
R/W : Re
a
d
ab
le/Writ
ab
le
R :
Re
a
d only
: Initi
a
l v
a
l
u
e