PCI9030-AA60BI PLX Technology, PCI9030-AA60BI Datasheet - Page 114

• Manufacturer Part Number: PCI9030-AA60BI
• Description: Peripheral Drivers & Components (PCIs) 32-bit 33MHz PCI v.2.2-compliant
• Manufacturer: PLX Technology

Specifications of PCI9030-AA60BI

• Package / Case: FPBGA-180
• Maximum Operating Temperature: + 125 C
• Minimum Operating Temperature: - 40 C
• Mounting Style: SMD/SMT
• Operating Supply Voltage: 3.3 V
• Lead Free Status / Rohs Status: No RoHS Version Available

Section 9
PCI Vital Product Data (VPD)
9.5
The PCI 9030 has full access to the read/write portion
of the serial EEPROM. The serial EEPROM, starting
at
(PROT_AREA[6:0]), designates this portion. This
register is loaded upon power-on and can be written
with a desired value, starting at location 0. This
provides the capability of writing the entire serial
EEPROM. Writes to the serial EEPROM are
comprised of the following commands:
• Write Enable
• Write command, followed by the upper 16-bit
• Write command, followed by the lower 16-bit
• Write Disable
This is done to ensure against accidental write of the
serial EEPROM. Randomly occurring cycles allow
VPD information to be written and read at any time.
9-2
Write data
Write data
Lword
RANDOM ACCESS
READ AND WRITE
Boundary
for
VPD
Accesses
bits
To perform a simple VPD write to the serial EEPROM,
the following steps are necessary:
To perform a simple VPD read from the serial
EEPROM, the following steps are necessary:
1. Change the write-protected serial EEPROM
2. Write the desired data into the PVPDATA
3. Write the destination serial EEPROM address
4. Probe the flag of operation until it changes to a 0
1. Write a destination serial EEPROM address and
2. Probe the flag of operation until it changes to a 1
3. Read back the PVPDATA register to see the
address in PROT_AREA[6:0], if required.
00000000h makes the serial EEPROM writable
from the beginning.
register.
and flag of operation to a value of 1.
to ensure the write is complete.
flag of operation to a value of 0.
to ensure the Read data is available.
requested data.
© 2002 PLX Technology, Inc. All rights reserved.
Random Access Read and Write
PCI 9030 Data Book Version 1.4