pnx1500 NXP Semiconductors, pnx1500 Datasheet - Page 334

• Manufacturer Part Number: pnx1500
• Description: Pnx15xx Series Connected Media Processor
• Manufacturer: NXP Semiconductors

Philips Semiconductors
Volume 1 of 1
PNX15XX_SER_3
Product data sheet
Figure 9:
Figure 10: Trrd and Trc Timing Parameters
Figure 11: Trfc Timing Parameter
command
command
command
address
address
clk_n
clk_n
bank
clk_n
Tcas Timing Parameter
dqs
clk
clk
clk
dq
4.0.1 Tcas Timing Parameter
4.1 Trrd and Trc Timing Parameters
4.2 Trfc Timing Parameter
A. rf.
Read
Act
n
Trrd = 3
Trrd = 3
Figure 9
Figure 10
of 8 cycles. The first two activated commands are to different banks, the third
activated command is to the same bank as the second command.
Figure 11
Tcas = 2.5
shows two consecutive read bursts with a Tcas delay of 2.5 cycles.
shows three active commands with a Trrd delay of 3 cycles and a Trc delay
shows a Tcas of 8 cycles.
Act
m
Trfc = 8
Trfc = 8
Rev. 3 — 17 March 2006
Read
Tcas = 2.5
Trc = 8
Trc = 8
Any
© Koninklijke Philips Electronics N.V. 2006. All rights reserved.
Chapter 9: DDR Controller
PNX15xx Series
Act
m
9-21