Cirrus Logic Crystal LAN CS8900A Application Note page 9

ELCS
X1
1 2
XTAL
20.0 MHz
SA00
SA01
SA02
SA03
SA04
SA05
SA06
SA07
SA08
SA09
SA10
SA11
SA12
SA13
SA14
SA15
SA16
SA17
SA18
SA19
CHIPSEL
MEMW
MEMR
IOW
IOR
REFRESH
SBHE
AEN
TSTSEL
RESET
+5V
AN83REV3
4.99k
R3
93
RES
97
XTL1
98
XTL2
37
ISA0
38
ISA1
39
ISA2
40
ISA3
41
ISA4
42
ISA5
43
ISA6
44
ISA7
45
ISA8
46
ISA9
47
ISA10
48
ISA11
50
ISA12
51
ISA13
52
ISA14
53
ISA15
54
ISA16
58
ISA17
59
ISA18
60
ISA19
7
CHIPSEL
28
MEMW
29
MEMR
62
IOW
61
IOR
49
REFRESH
36
SBHE
63
AEN
76
TESTSEL
77
SLEEP
75
RESET
Figure 13. CS8900A Schematic (Combo Card Application)
+5V
EEDATAOUT
LED0/HC0 99
BSTATUS / HC1
U1
CS8900
MEMCS16
I0CHRDY
0.1µF
1
CS VCC
EE_CLK
2
CLK
3
U3
D1
NC2
5
VSS
NC1
1K_EEPROM_S
BSTATUS / HC1
3
EECS
R18 680
5
78
R19 680
100
LED2
84
DO-
DO-
83
DO+
DO+
82
CI-
CI-
CI+ 81
CI+
DI- 80
DI-
79
DI+
DI+
92
RXD- 10BT_RD-
91
RXD+ 10BT_RD+
88
TXD- 10BT_TD-
87
TXD+ 10BT_TD+
INTRQ0 32
IRQ10
31
INTRQ1
IRQ11
INTRQ2 30
IRQ12
35
INTRQ3
IRQ5
34
MEMCS16
I0CS16 33
I0CS16
64
I0CHRDY
15
DMARQ0 DRQ5
13
DMARQ1 DRQ6
11
DMARQ2 DRQ7
PROM CS
CSOUT 17
PROM_CS
+5V
C5
8
D0 4
7
6
LED_T
3 4
LED_B
1 2