AC206-DS02-R View Datasheet(PDF) - Broadcom Corporation
Part Name
Description
MFG CO.
'AC206-DS02-R' PDF : 70 Pages View PDF
Preliminary Data Sheet
07/08/02
AC206
LED DISPLAY/CONFIGURATION/PROM INTERFACE
The LED pins are shared with reset-read configuration pins, test pins and EEPROM interface. The value applied on the
reset-read pins is only valid at the end of the reset cycle. The EEPROM interface is active after the reset cycle. Once the
data in the EEPROM is read, the same pins are used for LED display. Forty-eight LED outputs are available through an 6x8
matrix.
Table 12: LED Pins
Pin Name
LED_LN[5]
LED_LN[4]
LED_LN[3]
LED_LN[2]
LED_LN[1]
LED_LN[0]
LED_D[7]
LED_D[6]
LED_D[5]
LED_D[4]
LED_D[3]
LED_D[2]
LED_D[1]
LED_D[0]
Pin #
50
51
52
53
54
55
125
124
123
122
121
120
119
118
Type
O
48 mA
I/O, D
Description
Enable corresponding LED display line in the display matrix, active low
output. The detail of how to program and connect the LEDs is in the LED
Setup section.
LED_LN*[5] = Display 10BASE-T Collision rate and segment collision
status.
LED_LN*[4] = Display 100 Mbps Collision rate and segment collision
status
LED_LN*[3] = Display 10M segment utilization rate
LED_LN*[2] = Display 100M segment utilization rate
LED_LN*[1] = Programmable LED display. The default is to display 10M
Link/Activity information of each port.
LED_LN*[0] = Programmable LED display. The default is to display 100M
Link/Activity information of each port.
Output for LED display information of each column in the display matrix.
Active high output.
Pin Name
Mode[3] (MII_RXD2)
Mode[2] (LED_D[4])
Mode[1] (LED_D[1])
Mode[0] (LED_D[0])
TP125 (MII_RXD1)
ChipID[1] (LED_D[2]) Chip-
ID[0] (LED_D[3])
IBREF
Table 13: Configuration and Setup
Pin #
37
122
119
118
36
120
121
112
Type
I,D
I
I,D
Description
Mode[1:0]
00
01
10
11
Mode[3:2]
00
01
10
Domain A Domain B
100M Rptr 10M Rptr (Master)
100M Rptr 10M Rptr (Slave, Bridge disable)
100M
Port 5
Reserved
Digital Interface
MII
7-wire
Reverse MII
1:select 1:1.25 xformer
The device must be assigned with ChipID=0
I
Reference bias resistor. Connected to analog ground through a
10K (1%) resistor.
Document AC206-DS05-405-R
Broadcom
Pin Descriptions Page 17
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