CS8900A-IQ3 Просмотр технического описания (PDF) - Cirrus Logic
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CS8900A-IQ3 Datasheet PDF : 138 Pages
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CS8900A
Crystal LAN™ Ethernet Controller
20 MHz
5V
4.99 kΩ, 1%
EEPROM
93C46
CS 1
DO 4
97
98 4.7 kΩ 77
XTAL XTAL
3
1
EECS
2
SLEEP
6 EEDATAIN
76 93
TEST RES
RXD- 92
10 BASE T
Isolation
1 Transformer 16
100 Ω, 1% 1:1
6 RJ45
DI 3
CLK 2
5 EEDATAOUT
4 EESK
RXD+ 91
3
14
3
TXD- 88 Tr1 1%
6
11
2
Tc
7
TTR
ISA
BUS
LA[20:23]
4
Address
Decoder
PAL
BALE
SA[0:19]
7 CHIPSEL
20
28
ELCS
SA[0:19]
MEMW
CS8900A
TXD+ 87
Tr2 1%
DO- 84
DO+ 83
8
0.1 µF
9
1
12 V
AUI Isolation
1 Transformer 16
2
1:1
15
13 15 pin D
10
3
29 MEMR
62 IOW
61 IOR
49 REFRESH
36 SBHE
63 AEN
75 RESET
CI- 82
CI+ 81
DI- 80
DI+ 79
39.2 Ω, 1%
39.2 Ω, 1%
39.2 Ω, 1%
0.1 µF
4
5
1:1
7
8
1:1
39.2 Ω, 1%
0.1 µF
13 9
12 2
10 12
95
4, 6
34 MEMCS16
BSTATUS/HCI 78
33 IOCS16
5V
64 IOCHRDY
16
SD[0:15]
680 Ω
LANLED 100
IRQ10
IRQ11
32 INTRQ0
31 INTRQ1
680 Ω
LINKLED 99
IRQ12
IRQ5
DRQ5
DACK5
DRQ6
30 INTRQ2
35 INTRQ3
15 DMARQ0
16 DMACK0
13 DMARQ1
17
CSOUT
Boot-PROM
27C256
20 CE
22 OE
74LS245
19 OE
1 DIR
DACK6
14 DMACK1
DRQ7
DACK7
11 DMARQ2
12 DMACK2
PD[0:7]
SA[0:14]
15
SD[0:7]
8
TTR
Tr1 and Tr2
Tc
5 Volt
1 : 1.414
24.3 Ω
69 pF
3 Volt
1 : 2.5
8.0 Ω
560 pF
Figure 3. Typical ISA Bus Connection Diagram
CIRRUS LOGIC PRODUCT DATASHEET
DS271F4
11
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