9FGP205
Advance Information
Frequency Timing Generator for Peripherals
Pin Description
PIN
PIN #
PIN NAME
DESCRIPTION
TYPE
PWR
PWR
1
2
GND
VDD96
Ground pin.
Power pin for the DOT96 clocks, nominal 3.3V
True clock of differential pair for 96.00MHz spread spectrum capable DOT clock. These are
current mode outputs. External resistors are required for voltage bias.
Complementary clock of differential pair for 96.00MHz spread spectrum capable DOT clock.
These are current mode outputs. External resistors are required for voltage bias.
Active high input for enabling 96Hz outputs.
1 = enable output(s), 0 = tri-state output(s)
Active high input for enabling CPU DIFF pairs.
1 = enable output(s), 0 = tri-state output(s)
True clock of differential pair CPU outputs. These are current mode outputs. External resistors
are required for voltage bias.
3
4
5
6
7
DOT96SST
DOT96SSC
OE_96
OUT
OUT
IN
OE_CPU
IN
CPUCLKT0
OUT
OUT
Complementary clock of differential pair CPU outputs. These are current mode outputs.
External resistors are required for voltage bias.
Supply for CPU clocks, 3.3V nominal
8
9
CPUCLKC0
VDDCPU
PWR
PWR
10 GNDCPU
Ground pin for the CPU outputs
This pin establishes the reference current for the differential current-mode output pairs. This pin
requires a fixed precision resistor tied to ground in order to establish the appropriate current.
475 ohms is the standard value.
11 IREF
OUT
12 VDD32K
13 32.768KHz
14 GND32K
15 VDDREF
16 25MHz_0
17 25MHZ_1
18 GNDREF
19 X1_25
PWR
OUT
PWR
PWR
OUT
OUT
PWR
IN
Power pin for the 32.768KHz outputs, nominal 3.3V
32.768KHz clock output
Ground pin for the 32.768KHz outputs
Ref, XTAL power supply, nominal 3.3V
25MHz clock output, 3.3V
25MHz clock output, 3.3V
Ground pin for the REF outputs.
Crystal input, Nominally 25.00MHz.
20 X2_25
21 GND33
OUT
PWR
Crystal output, Nominally 25.00MHz.
Ground pin for the 33.33MHz outputs
22 33.33MHZ/**SMBADR
I/O
33.33MHz clock output / SMBus address select bit.
23 VDD33
24 RMII5
25 RMII4
26 VDDRMII
27 GNDRMII
28 RMII3
PWR
OUT
OUT
PWR
PWR
OUT
OUT
PWR
PWR
OUT
OUT
PWR
PWR
OUT
OUT
IN
Power pin for the 33.33MHz outputs, nominal 3.3V
3.3V 50MHz RMII clock output
3.3V 50MHz RMII clock output
3.3V power pin for the RMII clocks.
Ground pin for the RMII outputs
3.3V 50MHz RMII clock output
3.3V 50MHz RMII clock output
Ground pin for the RMII outputs
3.3V power pin for the RMII clocks.
3.3V 50MHz RMII clock output
3.3V 50MHz RMII clock output
3.3V power pin for the RGMII clocks and PLL
Ground pin for the RGMII outputs
3.3V 125MHz RGMII clock output
3.3V 125MHz RGMII clock output
Clock pin of SMBUS circuitry, 5V tolerant
Data pin of SMBUS circuitry, 5V tolerant
29 RMII2
30 GNDRMII
31 VDDRMII
32 RMII1
33 RMII0
34 VDDRGMII
35 GNDRGMII
36 RGMII1
37 RGMII0
38 SMBCLK
39 SMBDAT
I/O
Notifies clock to sample latched inputs on first low to high transition. After first power up, a low
stops all outputs except those designated to run in power down mode (WOL_STOP# mode)
40 CKPWRGD_WOL_STOP#
IN
IDT® Frequency Timing Generator for Peripherals
1664—05/14/10
2