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IDT Installation of the EB64H16 Eval Board
EB64H16 Eval Board Manual
2 - 13
January 16, 2007
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 10 16-bit I/O Expanders (Maxim PAX731) and a serial
EEPROM (24LC512). The I/O Expanders are used as the interface for the onboard hot-plug controllers
(MIC2591B). The lower three bits of the bus address for the I/O Expander 0 through I/O Expander 10 are
fixed through the stuffing resistor as 0x0, 0x1, 0x2, 0x3, 0x4, 0x5, 0x6, 0x7, 0x8, 0x9 and 0xA, respectively.
The bus address for the selected EEPROM device is
0b1000
by default and is configurable using
W145 and the switch S21 as described in Table 2.14.
SMBUS Slave Interface Address Setting
W146
SSMBADDR[5]
W147
SSMBADDR[3]
W148
SSMBADDR[2]
W149
SSMBADDR[1]
Slave Interface
Bus Address
OFF
OFF
OFF
OFF
0b1110111
(Default)
OFF
OFF
OFF
ON
0b1110110
OFF
OFF
ON
OFF
0b1110101
OFF
OFF
ON
ON
0b1110100
OFF
ON
OFF
OFF
0b1110011
OFF
ON
OFF
ON
0b1110010
OFF
ON
ON
OFF
0b1110001
OFF
ON
ON
ON
0b1110000
ON
OFF
OFF
OFF
0b1100111
ON
OFF
OFF
ON
0b1100110
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
Table 2.13 PES64H16 SMBus Slave Interface Address Setting
W145
S21[8]
S21[7]
S21[6]
Bus Address
OFF
OFF
OFF
OFF
0b0101 1111
OFF
OFF
OFF
ON
0b0101 1110
OFF
OFF
ON
OFF
0b0101 1101
Table 2.14 EEPROM SMBus Address Setting (Part 1 of 2)
Summary of Contents for 89EBPES48H12
Page 4: ...IDT Table of Contents EB64H16 Eval Board Manual ii January 16 2007 Notes...
Page 6: ...IDT Table of Contents EB64H16 Eval Board Manual iv January 16 2007 Notes...
Page 8: ...IDT List of Figures EB64H16 Eval Board Manual vi January 16 2007 Notes...
Page 38: ...IDT Installation of the EB64H16 Eval Board EB64H16 Eval Board Manual 2 26 January 16 2007...
Page 40: ...IDT Software for the EB64H16 Eval Board EB64H16 Eval Board Manual 3 2 January 16 2007 Notes...
Page 41: ...Notes EB64H16 Eval Board Manual 4 1 January 16 2007 Chapter 4 Schematics Schematics...