Brother International HL 760 Service Manual - Page 19
Reset, Resetn, Iordn, Iowrn, <29, <1s, Xsenn, 10:00], X24c04f
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1.3.6 Optional Serial I/O The interrupt of serial I/O are input to the EXINT terminal of the ASIC, and are recognized by the CPU. A 32-byte space for register is provided for this I/O, which are read and written to by the CPU. P4 OP I /F RESET OPCS c < 217 RD WR s
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1.3.6
Optional
Serial
I/O
The
interrupt
of
serial
I/O
are
input
to
the
EXINT
terminal
of
the
ASIC,
and
are
recognized
by
the
CPU.
A
32
-byte
space
for
register
is
provided
for
this
I/O,
which
are
read
and
written
to
by
the
CPU.
P4
OP
I
/F
RESET
c
17
RESETN
OPCS
<
2
XCSN
,13
RD
s
IORDN
1
WR
<
IOWRN
A5
X
30
MAOG
A4
<29
A3
<1S
A2
<
14
<
28
;
,
7
D31
MA02
D7
9
D30
MA05
MA04
MA03
DG
D29
D5
23
D2e
D4
•
7
D27
D3
21
D2G
D2•
6
D25
D
5
D24
DO
•
16
°PIRO
X
INTN
SENTAN
<
27
RESIST
BD
<
12
DDN
EXVDO
>
20
XVDO
LEDR
<
10
SENSE
>
ii
+5V
3
25
÷5V
3
26
+5V
OV
OV
OV
OV
1.3.7
EEPROM
0
0v
XSENN
+5V
I
°
C50
104
z
2
4
18
19
Fig.
2.8
MA
[10:00]
D
C31
:00]
The
EEPROM
is
X24C04F
type
of
a
two
-wire
method
with
a
512
x
8
bits
configuration.
ovo
+
#10
5V
X24C04F
7
8
1
2
3
TEST
VCC
SCL
VSS
AO
A
1
A2
SDA
8
4
Fig.
2.9
I I
-
10