RPIXP2850BB Intel, RPIXP2850BB Datasheet - Page 130

• Manufacturer Part Number: RPIXP2850BB
• Manufacturer: Intel

Specifications of RPIXP2850BB

• 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
Slowport
7.1.1
Table 47.
7.1.1.1
7.1.1.1.1
130
Slowport Signals
The Slowport signals are defined in
Signal Description
Topology and Routing
The following sections describe the topology and routing guidelines for Slowport interface control
signals, clocks, and address/data signals.
Slowport Control Signals
Figure 78
SP_AD[7:0]
SP_OE_L
SP_CP/SP_A0
SP_DIR/SP_A1
SP_ALE_L
SP_CS[1:0]
SP_RD_L
SP_WR_L
SP_ACK
SP_CLK
Signal Name
illustrates the Slowport control signals topology.
Address and Data multiplexed bidirectional tri-state busses
Output enable for external buffer
Latch enable for 16- or 32-bit data bus devices. Address [0] for 8-bit devices. O
Data transaction direction. Low for read, High for write.
Address [1] for 8-bit devices
Address latch enable
Device Selects:
SP_CS[0] Lower 32-Mbyte address spaces used for FLASH.
SP_CS[1] Upper 32-Mbyte address space used for Microprocessor type
devices.
Read strobe
Write Strobe
Acknowledge signal
Clock
Table
47; Slowport signals use LVTTL signal levels.
Description
Hardware Design Guide
I/O
O
O
O
O
O
O
I
O
I/O