IDT Installation of the EB16T4G2 Eval Board
EB16T4G2 Eval Board Manual
2 - 5
October 3, 2007
Notes
RSTHALT
Reset Halt.
When this signal is asserted during a PCI Express fundamental reset, the
PES16T4G2 executes the reset procedure and remains in a reset state with the Master and
Slave SMBuses active. This allows software to read and write registers internal to the
device before normal device operation begins. The device exits the reset state when the
RSTHALT bit is cleared in the P0_SWCTL register through the SMBus.
The value may be overridden by modifying the RSTHALT bit in the P0_SWCTL register.
Default: 0x0
SWMODE[2:0]
Switch Mode.
These configuration pins determine the PES16T4G2 switch operating
mode.
Default: 0x0
0x0 - Normal switch mode
0x1 - Normal switch mode with Serial EEPROM-based initialization
0x2 through 0x7 - Reserved
REFCLKM
PCI Express Reference Clock Mode Select
. This signal selects the frequency of the ref-
erence clock input.
Default: 0x0
0x0 - 100 MHz
0x1 - 125 MHz
MSMBADDR[2:0]
Master SMBus Address.
These pins determine the SMBus address of the serial EEPROM
from which configuration information is loaded.
Default: 0x0
Signal
Description
Default
S8[1]
CCLKDS
OFF
S8[2]
CCLKUS
OFF
S8[3]
MSMBSMODE
ON
S8[4]
Not Used
ON
S8[5]
Not Used
ON
S8[6]
Not Used
ON
S8[7]
Not Used
ON
S8[8]
RSTHALT
ON
S7[1]
SWMODE[0]
ON
S7[2]
SWMODE[1]
ON
S7[3]
SWMODE[2]
ON
S7[4]
Not Used
ON
S7[5]
REFCLKM
ON
S7[6]
MSMBADDR[0]
ON
S7[7]
MSMBADDR[1]
ON
S7[8]
MSMBADDR[2]
ON
Table 2.8 Boot Configuration Vector Switches S7 & S8 (ON=0, OFF=1)
Signal
Description
Table 2.7 Boot Configuration Vector Signals (Part 2 of 2)
Summary of Contents for 89EBPES16T4G2
Page 4: ...IDT Table of Contents EB16T4G2 Eval Board Manual ii October 3 2007 Notes...
Page 6: ...IDT List of Tables EB16T4G2 Eval Board Manual iv October 3 2007 Notes...
Page 8: ...IDT List of Figures EB16T4G2 Eval Board Manual vi October 3 2007 Notes...
Page 26: ...IDT Software for the EB16T4G2 Eval Board EB16T4G2 Eval Board Manual 3 2 October 3 2007 Notes...
Page 27: ...Notes EB16T4G2 Eval Board Manual 4 1 October 3 2007 Chapter 4 Schematics Schematics...
