Figure 5. cs8900a interface to hitachi sh3, An83 – Cirrus Logic AN83 User Manual
Page 14
AN83
14
AN83REV3
SH3 A2
SH3 IRQ0
RESET
SH3 RO#
Chip Select#
SH3 WE1#
SH3 [D15:D0]
SH3 A1
SH3 A3
RDX-
RXD+
TXD-
TXD+
3.3V
3.3V
3.3V
3.3V
510
0.
1uF
510
CS8900A-CQ3
37
38
39
40
41
42
43
44
45
46
47
48
50
51
52
53
54
58
59
60
65
66
67
68
71
72
73
74
27
26
25
24
21
20
19
18
28
29
62
61
49
63
75
34
33
64
32
31
30
35
15
13
11
16
14
12
3
6
5
4
9
22
56
69
90
85
95
8
10
23
55
57
70
1
89
86
94
96
77
76
93
84
83
80
79
82
81
92
91
88
87
78
99
100
17
97
98
2
7
36
SA0
SA1
SA2
SA3
SA4
SA5
SA6
SA7
SA8
SA9
SA10
SA11
SA12
SA13
SA14
SA15
SA16
SA17
SA18
SA19
SD0
SD1
SD2
SD3
SD4
SD5
SD6
SD7
SD8
SD9
SD10
SD11
SD12
SD13
SD14
SD15
ME
MW
ME
MR
IO
W
IO
R
RE
FRE
S
H
AEN
R
ESET
ME
MCS
1
6
IO
CS
1
6
IO
CHRDY
INTRQ
0
INTRQ
1
INTRQ
2
INTRQ
3
DMA
RQ
0
DMA
RQ
1
DMA
RQ
2
DMA
CK
0
DMA
CK
1
DMA
CK
2
EEC
S
EED
AT
AI
N
EED
AT
AOU
T
EESK
DV
DD1
DV
DD2
DV
DD3
DV
DD4
AVD
D
1
AVD
D
2
AVD
D
3
D
VSS1
D
VSS1A
D
VSS2
D
VSS3
D
VSS3A
D
VSS4
AVSS0
AVSS1
AVSS2
AVSS3
AVSS4
H
W
SLEEP
T
EST
SEL
RE
S
DO-
DO+
DI-
DI+
CI-
CI+
RXD-
RXD+
TXD-
TXD+
BSTATUS/HC1
LINKLED/HC0
LANLED
CSOUT
XTAL1
XTAL2
ELC
S
C
H
IPSEL
SBH
E
LED
4.99K
0.
1uF
LED
0.
1uF
20MHz
0.
1uF
0.
1uF
0.
1uF
0.
1uF
560pF
8
8
100
Figure 5. CS8900A Interface to Hitachi SH3