IDT88K8483 Integrated Device Technology, IDT88K8483 Datasheet - Page 34

• Manufacturer Part Number: IDT88K8483
• Description: Spi-4 Exchange Document Issue 1.0
• Manufacturer: Integrated Device Technology

QDR-II External Memory Structure
Figure 5 QDR-II SRAM Structure Example
LIDs, and allocate 128 segments (32Kbytes) to each LID as shown in
IDT IDT88K8483
The device can be connected to 18M bits QDR-II (2M usable data bytes) SRAM which can store up to 8K segments of 256 bytes as shown in
p.34. The user can program the LID allocation in the QDR-II. For example, the user can have 64
Figure 5 QDR-II SRAM Structure Example
QDR-II (8K segments, 2M bytes, 16M bits)
QDR-II (8K segments, 2M bytes, 16M bits)
Figure 6 QDR-II Allocation Example
Figure 4 PFP Allocation Example
PFP (508 segments, 127K bytes)
Figure 3 PFP Structure Example
PFP (508 segments, 127K bytes)
Segment 8K-1
34 of 162
Segment 507
Segment 1
Segment 1
Segment 0
Segment 0
Figure 6 QDR-II Allocation Example
LID 63
LID 63
LID 1
LID 1
LID 0
LID 0
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128 segments / 32K bytes
7 segments (1,792 bytes)
256bytes
256bytes
p.34.
October 20, 2006