Onkyo TX-NR801/E Service Manual page 58

IC BLOCK DIAGRAMS AND DESCRIPTIONS
CS8900A(Ethernet Controller)
Pin No. Symbol Description
1 AVSS0 Analog ground pin
2 ELCS External logic chip select pullup pin
3 EECS EEPROM chip select output pin
4 EESK EEPROM serial clock pin
5 EEDataOut EEPROM data output pin
6 EEDataiN EEPROM data input pin
7 CHIPSEL Chip select pin
8 DVSS1 Digital ground pin
9 DVDD1 Digital power source pin
10 DVSS1A Digital ground pin
11 DMARQ2 DMA(Direct Memory Access) request output pin
12 DMACK2 DMA acknowledge input pin
13 DMARQ1 DMA request output pin
14 DMACK1 DMA acknowledge input pin
15 DMARQ0 DMA request output pin
16 DMACK0 DMA acknowledge input pin
17 CSOUT Chip select output pin for external boot EROM
18 SD15 System data bus output pin
19 SD14 System data bus output pin
20 SD13 System data bus output pin
21 SD12 System data bus output pin
22 DVDD2 Digital power source pin
23 DVSS2 Digital ground pin
24 SD11 System data bus output pin
25 SD10 System data bus output pin
26 SD09 System data bus output pin
27 SD08 System data bus output pin
28 MEMW Memory write input pin
29 MEMR Memory read input pin
30 INTRQ2 Interrupt request output pin
31 INTRQ1 Interrupt request output pin
32 INTRQ0 Interrupt request output pin
33 IOCS16 I/O chip select 16-bit output pin
34 MEMCS16 Memory chip select 16-bit output pin
35 INTRQ3 Interrupt request output pin
36 SBHE System bus high enable input pin
37 SA0 System address bus input pin
38 SA1 System address bus input pin
39 SA2 System address bus input pin
40 SA3 System address bus input pin
41 SA4 System address bus input pin
42 SA5 System address bus input pin
43 SA6 System address bus input pin
44 SA7 System address bus input pin
45 SA8 System address bus input pin
46 SA9 System address bus input pin
47 SA10 System address bus input pin
48 SA11 System address bus input pin
49 REFRESH Refresh input pin
50 SA12 System address bus input pin
Pin No. Symbol Description
51 SA13 System address bus input pin
52 SA14 System address bus input pin
53 SA15 System address bus input pin
54 SA16 System address bus input pin
55 DVSS3 Digital ground pin
56 DVDD3 Digital power source pin
57 DVSS3A Digital ground pin
58 SA17 System address bus input pin
59 SA18 System address bus input pin
60 SA19 System address bus input pin
61 IOR I/O read input pin
62 IOW I/O write input pin
63 AEN Address enable input pin
64 IOCHRDY I/O channel ready output pin
65 SD0 System data bus output pin
66 SD1 System data bus output pin
67 SD2 System data bus output pin
68 SD3 System data bus output pin
69 DVDD4 Digital power source pin
70 DVSS4 Digital ground pin
71 SD4 System data bus output pin
72 SD5 System data bus output pin
73 SD6 System data bus output pin
74 SD7 System data bus output pin
75 RESET Reset input
76 TEST Test enable input pin
77 SLEEP Hardware sleep input pin
78 BSTATUS or HC1 Bus status or host controlled output pin
79 DI+ AUI(Attachment Unit Interface) data differential output pin+
80 DI- AUI data differential output pin -
81 CI+ AUI data differential input pin+
82 CI- AUI data differential input pin-
83 DO+ AUI collision differential input pin+
84 DO- AUI collision differential input pin-
85 AVDD2 Analog power source pin
86 AVSS2 Analog ground pin
87 TXD+ 10BASE-T transmit, differential output pin +
88 TXD- 10BASE-T transmit, differential output pin -
89 AVSS1 Analog ground pin
90 AVDD1 Analog power source pin
91 RXD+ 10BASE-T receive, differential input pin +
92 RXD- 10BASE-T- receive, differential input pin -
93 RES Reference resistor input pin
94 AVSS3 Analog ground pin
95 AVDD3 Analog power source pin
96 AVSS4 Analog ground pin
97 XTAL1 20MHz crystal input pin
98 XTAL2 20MHz crystal output pin
99 LINKLED or HC0 Link good LED or host controlled output pin
100 LANLED LAN activity LED output pin
58
TX-NR801/E