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AM7990PC-80 (AMC)
LOCAL AREA NETWORK CONTROLLER FOR ETHERNET
- TOP VIEW -
DAL• - 0
PAAAllEl
IUS
INTERFACE
STAIOH
ADDRIESS
DET£C110H
OMA/
DATA PATH
CONTAOl
~ETRY
LOGIC
NWS-1510/1530/1580
141CAOPAOOAAM
SHIR£
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5-7
AM7992BDC (AMO)
SERIAL INTERFACE ADAPTER
- TOP VIEW -
CLSN
PF
RCLK
RENA
RF
RX
TCLK
TENA
TEST
TSH
TX
XI ,X2
;COLLISION
;RECEIVE rATH ru FILTER
;RECEIVE CLOCK
;CARRIER PRESENT
;FREQUENCY SETTING VCO LOOP FILTER
;RECEIVE DATA
;TRANSMIT CLOCK
;TRANSMIT ENAnlE
;TEST CONTROL
;TRANSMIT HOOE SELECT
;TRANSMIT DATA
;CRYSTAL
RECEIVE+
DATA
MANCHE.STER
RECEIVER
DECOOER
w
0
NOISE
<
REJECT
II..
FILTER
a:;
w
I-
;
COLLISION+
NOISE
REJECT
a:;
COLLISION -
FILTER
w
:::
14
w
TRANSMIT•
MANCHESTER
0
13
ENCODER
Ill
TRANSMIT -
z
< a:
I-
CRYSTAL
osc
I
~
RX
ACLK
CLSN
TX
TENA
X1
X2
TSEL
PF
RX
RCLK
w
0
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II..
n::
w
I-
CLSN
;
a:
w
'IO
..J
TX
..J
12
0
TENA
a:
I-
11
TCLK
z
0
0
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