PNX1702EH/G,557 NXP Semiconductors, PNX1702EH/G,557 Datasheet - Page 690
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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
Table 2: LAN100 Registers
PNX17XX_SER_1
Preliminary data sheet
Bit
This register is a byte address aligned to a word boundary (i.e., the two LSBs are fixed to 0). The register contains the
lowest address in the array of descriptors.
31:2
1:0
Offset 0x07 2134
This register is a byte address aligned to a double word boundary (i.e., the three LSBs are fixed to 0). The register contains
the lowest address in the array of status words.
31:3
2:0
Offset 0x07 2138
This register defines the number of descriptors in the descriptor array for which TxRtDescriptor is the base address. The
number of descriptors should match the number of statuse words. The register uses minus-one encoding, i.e., if the array
has 8 status elements, the value in the register should be 7.
31:16
15:0
Offset 0x07 213C
This register defines the descriptor that is going to be filled next by the software transmit driver. The transmit descriptor array
is empty as long as TxRtProduceIndex equals TxRtConsumeIndex. As soon as the array is not empty, the real-time transmit
hardware will start transmitting packets, if enabled. After a packet has been processed by software, software should
increment the TxRtProduceIndex, wrapping to 0 once TxRtDescriptorNumber has been reached. If the TxRtProduceIndex
equals TxRtConsumeIndex – 1, the descriptor array is full, and software should stop producing new descriptors until
hardware has transmitted some packets and updated the TxRtConsumeIndex.
31:16
15:0
Offset 0x07 2140
This register defines the descriptor that is going to be transmitted next by the hardware real-time transmit process. After a
packet has been transmitted, hardware increments the index, wrapping to 0 once TxRtDescriptorNumber has been
reached. If the TxRtConsumeIndex equals TxRtProduceIndex, the descriptor array is empty, and the transmit channel will
stop transmitting until software produces new descriptors.
31:16
15:0
Offset 0x07 2144
The BlockZone Register is only used in real-time/non-real-time arbitration mode, i.e., when the EnableQoS bit in the
Command register is deasserted. The BlockZone register defines a window before a real-time transmission time-stamp in
which no new non-real-time transmissions can be started, so as to free up the Ethernet for a pending real-time transmission.
The size of the BlockZone window in seconds is: BlockZone * T
No new non-real-time transfers will be started if: DescriptorTimeStamp < GlobalTimeStamp + BlockZone
The real-time transmission will start as soon as: DescriptorTimeStamp < GlobalTimeStamp.
31:16
Symbol
TxRtDescriptor
-
TxRtStatus
-
-
TxRtDescriptorNumber
-
TxRtProduceIndex
-
TxRtConsumeIndex
-
Real-time Transmit Status Base Address Register (TxRtStatus)
Real-time Transmit Number Of Descriptors Register (TxRtDescriptorNumber)
Real-time Transmit Produce Index Register (TxRtProduceIndex)
Real-time Transmit Consume Index Register (TxRtConsumeIndex)
Transmit Block Zone Register (BlockZone)
…Continued
Acces
s
R/W
R/W
-
R/W
-
R/W
-
RO
-
Value
0
0
0
0
Rev. 1 — 17 March 2006
Description
MSBs of real-time descriptor base address.
Fixed to 0.
MSBs of real-time transmit status base address.
Fixed to 0.
Unused
Number of descriptors in the descriptor array for which
TxRtDescriptor is the base address. The number of descriptors is
minus-one encoded.
Unused
Index of the descriptor that is going to be filled next by the real-time
transmit software driver.
Unused
Index of the descriptor that is going to be transmitted next by the
real-time Transmit Datapath.
Unused
Chapter 23: LAN100 — Ethernet Media Access Controller
Time-stamp Clock
© Koninklijke Philips Electronics N.V. 2006. All rights reserved.
PNX17xx Series
23-17
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