RPIXP2800BA Intel, RPIXP2800BA Datasheet - Page 94

• Manufacturer Part Number: RPIXP2800BA
• Manufacturer: Intel

Specifications of RPIXP2800BA

• Operating Supply Voltage (typ): 1.3/1.5/2.5/3.3V
• Operating Supply Voltage (max): 1.575/2.7/3.465V
• Operating Supply Voltage (min): 1.235/2.3/3.135V
• Mounting: Surface Mount
• Operating Temperature (max): 70C
• Operating Temperature (min): 0C
• Operating Temperature Classification: Commercial
• Lead Free Status / Rohs Status: Not Compliant

IXP28XX Network Processor
QDR SRAM
Figure 57.
4.11
94
QDR Signal Tee Point Arms Routed on Signal Layers 4 and 13
QDR SRAM Design Review Checklist
Use the following design review checklist for QDR SRAM schematic reviews:
QDR signal Tee Point arms routed on signal layers 4 and 13
•
•
•
•
•
•
For clamshell pairs, the data bus pins are flipped, so the BWS_N signals also must be flipped.
The byte parity is DQ8 for byte 0.
The byte parity is DQ17 for byte 1.
Check for proper ZQ resistor: 50 Ω.
QDR JTAG pins are 3.3 V on the IXP28XX network processor, but 1.5 V on QDR devices,
i.e., a level-shift is necessary.
The IXP28XX network processor CIN[1] pins are NC from the I/O pad to the SRAM
controller internally. Only CIN[0] is used to derive the read capture clock.
— The CIN[1] pin can be used to terminate the clock and this I/O pad is controllable via the
RCOMP registers. Refer to the Intel® IXP2400 and IXP2800 Network Processor
Programmer’s Reference Manual for more details.
Hardware Design Guide