adm6999ux Infineon Technologies Corporation, adm6999ux Datasheet - Page 15

• Manufacturer Part Number: adm6999ux
• Description: Adm6999u 9 Port 10/100 Mb/s Single Chip Ethernet Switch Controller
• Manufacturer: Infineon Technologies Corporation

Table 3
Pin or Ball
No.
98
97
96
95
92
91
90
89
92
EEPROM/Management Interface
84
80
81
79
Misc.
85
117
120
118
112
Data Sheet
ADM6999U/UX 128 Pin Descriptions
Name
LED0
LED1
LED2
LED3
LED4
LED5
LED6
LED7
Dual Color
EEDO
EECS
EECK
XOVEN
EEDI
LEDMODE
CKO25M
Control
RTX
VREF
RC
Pin
Type
I
I
I
O
I/O
I/O
O
O
O
O
A
A
I
Buffer
Type
TTL, PU
4mA, PD EEPROM Chip Select
4mA, PD Serial Clock
4mA, PD Setting XOVEN: This pin is internally pull-down.
4mA, PD EEPROM Serial Data Input
4mA, PD Setting
8mA
ST
Function
Scan LED Data [7:0]
Setting Dual Color: Serial LED mode only.
Single Color Dual Color Select
0
1
EEPROM Data Output
Serial data input from EEPROM. This pin is internally pull-
up.
This pin is active high chip enable for EEPROM. When RC
is low, it will be Tristate. This pin is internally pull-down.
This pin is clock source for EEPROM.
On power-on-reset, latched as P7~0 Auto MDIX enable or
not.
Suggest externally pull up to enable Auto MDIX for all ports.
0
1
This pin is output for serial data transfer.
LEDMODE: On power-on-reset, latched as Dual Color
mode or not. This pin is internal pull-down.
0
1
25M Clock Output
FET Control Signal
The pin is used to control FET for 3.3 V to 1.8 V regulator.
Add 0.01 µf capacitor to GND.
TX Resistor
Add 1.1K %1(A1), 1K %1 (A2) resister to GND.
Analog Reference Voltage
RC Input for Power On reset
Reset input pin
B
B
B
B
B
B
15
, Single Color LED mode
, Dual Color LED mode.
, to disable MDIX (defaulted)
, to enable MDIX
, to set Single color mode for LED
, to set Dual Color mode for LED
Input and Output Signals
Rev. 1.42, 2005-11-25
ADM6999U/UX
Data Sheet