PNX1702EH/G,557 NXP Semiconductors, PNX1702EH/G,557 Datasheet - Page 333
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PNX1702EH/G,557
Manufacturer Part Number
PNX1702EH/G,557
Description
IC MEDIA PROC 500MHZ 456-BGA
Manufacturer
NXP Semiconductors
Datasheet
1.PNX1702EHG557.pdf
(832 pages)
Specifications of PNX1702EH/G,557
Applications
Multimedia
Core Processor
TriMedia
Controller Series
Nexperia
Ram Size
208K x 8
Interface
I²C, 2-Wire Serial
Number Of I /o
61
Voltage - Supply
1.33 V ~ 1.47 V
Operating Temperature
0°C ~ 85°C
Mounting Type
Surface Mount
Package / Case
456-HBGA
Operating Temperature (min)
0C
Operating Temperature Classification
Commercial
Mounting
Surface Mount
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Program Memory Type
-
Lead Free Status / Rohs Status
Compliant
Other names
935281647557
PNX1702EH/G
PNX1702EH/G
PNX1702EH/G
PNX1702EH/G
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Philips Semiconductors
Volume 1 of 1
3. Application Notes
PNX17XX_SER_1
Preliminary data sheet
2.5.5 Sequence of Actions
3.1 Memory Configurations
To enter halt mode, the DDR SDRAM Controller performs the following sequence of
actions:
To leave halt mode, the DDR controller performs the following action:
The DDR SDRAM Controller supports a wide range of DDR SDRAM memory
configurations. Some examples of memory configurations that are supported for an
external data bus of 32 bits are shown in
bank of DDR devices is connected to the DDR controller. Throughout this document
the term rank will be used for a physical bank in order to prevent any confusion with
the logical banks inside the DDR devices. On the right hand side of
ranks of DDR devices are connected to the DDR controller. In single rank
configurations, there is no need to drive the chip select inputs on the DDR devices
from the DDR controller. In a multi-rank configuration, each rank will receive its own
chip select signal from the DDR controller. The DDR controller offers a 1 to 1 match
with the pin names of the DDR memory devices.
1. Precharge all banks (of all ranks)
2. Apply a NOP command
3. Enter self refresh mode, with CKE low, deactivate internal DLL
•
256 DDR SDRAM Controller memory cycles with CKE high, NOP commands, to
activate DLL.
Rev. 1 — 17 March 2006
Figure
8. On the left side a single physical
© Koninklijke Philips Electronics N.V. 2006. All rights reserved.
Chapter 9: DDR Controller
PNX17xx Series
Figure 8
two
9-16
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