Onkyo TX-NR901 Service Manual page 83

IC BLOCK DIAGRAMS AND DESCRIPTIONS
Q616 CS8900A(Ethernet Controller)
EEPROM
Control
ISA
Bus
Logic
Memory
Manager
1
AVSS0
2
ELCS
3
EECS
4
EESK
5
EEDataOut
6
EEDataiN
7
CHIPSEL
8
DVSS1
9
DVDD1
10
DVSS1A
11
DMARQ2
12
DMACK2
13
DMARQ1
14
DMACK1
15
DMARQ0
16
DMACK0
17
CSOUT
18
SD15
19
SD14
20
SD13
21
SD12
22
DVDD2
23
DVSS2
24
SD11
25
SD10
LED
Clock
Control
RAM
Encoder/
Decoder
&
PLL
802.3
MAC
Boundary
Engine
Power
Scan
Manager
Test Logic
CS8900A
10BASE-T
RX Filters &
Receiver
10BASE-T
RX Filters &
Transmitter
AUI
Transmitter
AUI
Collision
AUI
Receiver
75
74
73
72
71
70
69
68
67
66
65
64
63
62
61
60
59
58
57
56
55
54
53
52
51
TX-NR901
RESET
SD7
SD6
SD5
SD4
DVSS4
DVDD4
SD3
SD2
SD1
SD0
IOCHRDY
AEN
IOW
IOR
SA19
SA18
SA17
DVSS3A
DVDD3
DVSS3
SA16
SA15
SA14
SA13