LC8954 Просмотр технического описания (PDF) - SANYO -> Panasonic
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Компоненты Описание
производитель
LC8954 Datasheet PDF : 7 Pages
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LC8954
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Pin No.
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
Pin
RA13
RA14
RA15
ZRWE
ZROE
IO0
IO1
VSS
IO2
IO3
IO4
IO5
IO6
IO7
ERA
EXTAL
XTAL
TEST0
TEST1
TEST2
MCK
LRCK
SDATA
VDD
BCK
C2PO
WFCK
EXCK
SBSO
SCOR
CEMPHAS
SD0
SD1
SD2
SD3
SD4
SD5
SD6
SD7
VDD
ZRESET
SCPUCNT
SUA0
SUA1
SUA2
SUA3
SUA4
SUA5
ZSWAIT
ZINT
RS (ALE)
ZRD
ZWR
ZCS
D0
Type
O
O
O
O
O
B
B
P
B
B
B
B
B
B
B
I
O
I
I
I
O
I
I
P
I
I
I
O
I
I
I
B
B
B
B
B
B
B
B
P
I
I
I
I
I
I
I
I
O
O
I
I
I
I
B
RAM address outputs
RAM write enable
RAM read enable
Data buffer RAM data I/O
Type: I: Input pin, O: Output pin, B: Bi-directional pin, P: Power supply pin
Function
Data buffer RAM data I/O
Data buffer RAM erasure flag I/O
Crystal oscillator connection
Test pins: Normally tied low
CD-DSP connection
CD-DSP connection
Subcode I/O
Connects to the CD-DSP EMPHASIS pin
Sub-CPU data signal pins: Built-in pull-up resistors
Reset pin: Hold low for at least 1 µs
Sub-CPU I/F selection
Sub-CPU register selection address
Sub-CPU wait signal
Sub-CPU interrupt signal
Internal register set
Sub-CPU read
Sub-CPU write
Sub-CPU chip select
Host CPU data bus
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No. 4127-5/7
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