IDT Installation of the EB8T5A Eval Board
EB8T5A Eval Board Manual
2 - 10
July 23, 2009
Notes
The slave SMBus interface responds to the following SMBus transactions initiated by an SMBus master.
Initiation of any SMBus transaction other than those listed above produces undefined results. See the
SMBus 2.0 specification for a detailed description of the following transactions:
– Byte and Word Write/Read
– Block Write/Read
SMBus Master Interface
Connected to the master SMBus interface are four 16-bit I/O Expanders (PCA9555) and a serial
EEPROM (24LC512). Four I/O Expanders are used as the interface for the onboard hot-plug controllers
(MIC2591B).
The bus address for the selected EEPROM device is
0b1010000
by default and the lower four bits is
configurable using switch S4 as described in Table 2.12.
JTAG Header
The PES8T5A provides a JTAG connector J4 for access to the PES8T5A JTAG interface. The
connector is a 2.54 x 2.54 mm pitch male 10-pin connector. Refer to Table 2.12 for the JTAG Connector J2
pin out.
ON
OFF
ON
OFF
0b1100101
ON
OFF
ON
ON
0b1100100
ON
ON
OFF
OFF
0b1100011
ON
ON
OFF
ON
0b1100010
ON
ON
ON
OFF
0b1100001
ON
ON
ON
ON
0b1100000
S4[8]
S4[7]
S4[6]
S4[5]
Bus Address
OFF
OFF
OFF
OFF
0b1111
OFF
OFF
OFF
ON
0b1110
OFF
OFF
ON
OFF
0b1101
OFF
OFF
ON
ON
01100
OFF
ON
OFF
OFF
0b1011
OFF
ON
OFF
ON
0b1010
OFF
ON
ON
OFF
0b1001
OFF
ON
ON
ON
0b1000
ON
ON
ON
ON
0b0000
(Default)
Table 2.12 EEPROM SMBus Address Setting
SMBUS Slave Interface Address Setting
S4[4]
SSMBADDR[5]
S4[3]
SSMBADDR[3]
S4[2]
SSMBADDR[2]
S4[1]
SSMBADDR[1]
Slave Interface
Bus Address
Table 2.11 PES8T5A SMBus Slave Interface Address Setting (Part 2 of 2)
Summary of Contents for EB8T5A Eval Board
Page 4: ...IDT Table of Contents EB8T5A Eval Board Manual ii July 23 2009 Notes...
Page 6: ...IDT List of Tables EB8T5A Eval Board Manual iv July 23 2009 Notes...
Page 8: ...IDT List of Figures EB8T5A Eval Board Manual vi July 23 2009 Notes...
Page 12: ...IDT Description of the EB8T5A Eval Board EB8T5A Eval Board Manual 1 4 July 23 2009 Notes...
Page 30: ...IDT Software for the EB8T5A Eval Board EB8T5A Eval Board Manual 3 2 July 23 2009 Notes...
Page 31: ...Notes EB8T5A Eval Board Manual 4 1 July 23 2009 Chapter 4 Schematics Schematics...
