88e3016 Marvell Semiconductor, Inc., 88e3016 Datasheet - Page 12

• Manufacturer Part Number: 88e3016
• Description: Integrated 10/100 Fast Ethernet Transceiver
• Manufacturer: Marvell Semiconductor, Inc.

Table 5:
Table 6:
Doc. No. MV-S103164-00, Rev. --
Page 12
8 8E301 6
43
41
42
11
44
8 8E301 6
38
39
3
2
1
64
10
57
4
JTAG
Clock/Configuration/Reset
Pin Name
TDI
TMS
TCK
TRSTn
TDO
Pin N ame
XTAL_IN
XTAL_OUT
CONFIG[3]
CONFIG[2]
CONFIG[1]
CONFIG[0]
RESETn
VREF
COMAn
88E3016
Integrated 10/100 Fast Ethernet Transceiver
Document Classification: Proprietary Information
Ty pe
I
I
I
I
O
Typ e
I
O
I
I
I
I
CONFIDENTIAL
Des cription
Boundary scan test data input. TDI contains an internal 150 kohm
pull-up resistor.
Boundary scan test mode select input. TMS contains an internal
150 kohm pull-up resistor.
Boundary scan test clock input. TCK contains an internal 150
kohm pull-up resistor.
Boundary scan test reset input. Active low. TRSTn contains an
internal 150 kohm pull-up resistor as per the 1149.1 specification.
After power up, the JTAG state machine should be reset by apply-
ing a low signal on this pin, or by keeping TMS high and applying
5 TCK pulses, or by pulling this pin low by a 4.7 kohm resistor.
Boundary scan test data output.
Desc ription
Reference Clock. 25 MHz ± 50 ppm tolerance crystal reference or
oscillator input.
Reference Clock. 25 MHz ± 50 ppm tolerance crystal reference.
When the XTAL_OUT pin is not connected, it should be left float-
ing. XTAL_OUT is used for crystal only. This pin should be left
floating when an oscillator input is connected to XTAL_IN.
Hardware Configuration.
See “Hardware Configuration” on page 28.
Hardware reset. Active low.
XTAL_IN/XTAL_OUT must be active for a minimum of 10 clock
cycles before the rising edge of RESETn.
RESETn must be pulled high for normal operation.
RGMII input voltage reference.
Must be set to VDDOR/2 when used as 2.5V SSTL_2.
Set to VDDOR when used as 2.5V LV CMOS.
COMA Control. Active low. If RESETn is low then COMAn has no
effect. COMAn contains an internal 150 kohm pull-up resistor.
0 = In power saving mode
1 = Normal operation
Copyright © 2006 Marvell
May 4, 2006, Advance