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- Pin Functions (PE5427A)
Pin No.
Pin Name
1
BSO
bsck
2
A
3-5
NC
6
EVDD
7
EVSS
8-10
NC
11-13
MEMO0-2
14-16
NC
adena
17
18
IC/VPP
19
BRXEN
bsrq
20
xtalen!
21
B
22
NC
xrst
23
24
VDCONT
25
CD3VON
26
CONT
xwait
27
28
LOEJ
29
CLCONT
30
CDMUTE
reset
31
32
XT1
C
33
XT2
34
REGC
35
X2
36
X1
37
VSS
38
VDD
39
CLKOUT
xwrite
40
41, 42
NC
xread
43
44
XASTB
D
45
LOCK
46
NC
47-54
AD0-7
55
BVDD
56
BVSS
57-64
AD8-15
xcs
65
66
NC
67, 68
DBBWRDY0, 1
69, 70
DBBRRDY0, 1
71
AVDD
E
72
AVSS
73
AVREF
74
VDSENS
75
DSCSNS
76
TEMP
77
HOME
csens
78
79
RFOKIN
80-82
NC
83
WMAARI
84
TYPE_A/D
testin
85
F
80
1
2
I/O
Format
Function and Operation
O
C
P-Bus serial data output
I/O
/C
P-Bus serial clock input/output
Not used (Open)
E power supply Positive power supply
E power supply GND
Not used (Open)
O
C
Shock proof memory buffer quantity output 0-2
Not used (Open)
O
C
A/D reference voltage supply control output
IC : VSS direct connection/VPP : Pull-down
I/O
/C
P-Bus reception is possible
I/O
/C
P-Bus service request demand
O
C
CD LSI 16.9344MHz oscillation permission output
Not used (Open)
O
C
CD LSI reset control output
O
C
VD power supply control output
O
C
CD +3.3V power supply control output
O
C
Servo driver power supply control output
I
CD LSI wait control signal input
O
C
The direction change output of LOAD/EJECT
O
C
Driver input change output
O
C
CD mute control output
I
System reset input
I
Connected to the oscillator for subclock
(connected to VSS via the resistor)
Connected to the oscillator for subclock (Open)
Connected to the capacity stabilizing output of the regulator
(an electrolytic capacitor of about 1µF)
Oscillator connection for mainclock
I
Oscillator connection for mainclock
GND
Positive power supply (5V)
O
C
Internal system clock output (Open)
O
CD LSI write control signal output
Not used (Open)
O
CD LSI read control signal output
O
CD LSI address strobe output
I
Spindle lock input
Not used (Open)
I/O
/C
Address/Data bus 0-7
B power supply Positive power supply (3.3V)
B power supply GND
I/O
/C
Address/Data bus 8-15
O
C
CD LSI chip selection output
Not used (Open)
I
Connected to AVDD or AVSS via the resistor
I
Connected to AVDD or AVSS via the resistor
A power supply Positive power supply (5V)
A power supply GND
The reference voltage input for A/D converter
VD power supply short sense input
Disc state sense input
Temperature information sense input
I
Home SW sense input
I
Flap closing sense input
I
RFOK input chatter count input
Connected to AVDD or AVSS via the resistor
I
Connected to AVDD or AVSS via the resistor
I
Connected to AVDD or AVSS via the resistor
I
Chip check test program starting input
FH-M8047ZT/XN/ES
2
3
3
4
4
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