dp83261 National Semiconductor Corporation, dp83261 Datasheet - Page 109

• Manufacturer Part Number: dp83261
• Description: Bmac Device Fddi Media Access Controller
• Manufacturer: National Semiconductor Corporation

7 0 Signal Descriptions
7 6 PINOUT SUMMARY (Continued)
Pin
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
Request Class 2
Request Class 1
Request Class 0
Request Ready
Request Send
Request End of Frame
Request Final
Request Abort
Transmit Pass
Transmit Ready
Transmit Acknowledge
Transmit Ending Delimiter
Transmit Abort
Ground
Positive Power Supply
Token Class
Token Holding Timer Disabled
Ring Operational
External A Flag
External M Flag
Positive Power Supply
MAC Request Parity
MAC Request Data 7
MAC Request Data 6
MAC Request Data 5
MAC Request Data 4
MAC Request Data 3
MAC Request Data 2
MAC Request Data 1
MAC Request Data 0
Ground
Receive Start
Frame Control Recevied
Short Long Address Flag
Individual Group Address Flag
Destination Address Received
My Destination Address Recognized
Ground
Positive Power Supply
Source Address Received
(Continued)
TABLE 7-6 Pinout Summary (Continued)
Signal Name
109
RQRCLS2
RQRCLS1
RQRCLS0
RQRDY
RQSEND
RQEOF
RQFINAL
RQABT
TXPASS
TXRDY
TXACK
TXED
TXABORT
GND
V
TXCLASS
THTDIS
TXRINGOP
EA
EM
V
MRP
MRD7
MRD6
MRD5
MRD4
MRD3
MRD2
MRD1
MRD0
GND
RCSTART
FCRCVD
FCSL
DAIG
DARCVD
AFLAG
GND
V
SARCVD
CC
CC
CC
Symbol
I O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
I
I
I
I
I
I
I
I
I
I
I
I
I
I
I
I
I
I
I
I
I
I
I
I
I