PNX1701EH,557 NXP Semiconductors, PNX1701EH,557 Datasheet - Page 211
PNX1701EH,557
Manufacturer Part Number
PNX1701EH,557
Description
Manufacturer
NXP Semiconductors
Datasheet
1.PNX1701EH557.pdf
(832 pages)
Specifications of PNX1701EH,557
Operating Temperature (min)
0C
Operating Temperature Classification
Commercial
Mounting
Surface Mount
Lead Free Status / Rohs Status
Not Compliant
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Philips Semiconductors
Volume 1 of 1
Table 2: The Boot Commands
3. PNX17xx Series Boot Scripts Content
PNX17XX_SER_1
Preliminary data sheet
Command
write(address,value)
writelist(a,lenght,valarray)
delay(ncycles)
Terminate Boot
3.1 The Common Behavior
Encoding (32 bits each)
Address:
aaaaaaaaaaaaaaaaaaaaaaaaaaaaaa00
Value:
vvvvvvvvvvvvvvvvvvvvvvvvvvvvvvv
Address:
aaaaaaaaaaaaaaaaaaaaaaaaaaaaaa01
length<n>:
nnnnnnnnnnnnnnnnnnnnnnnnnnnnn
value<1>:
vvvvvvvvvvvvvvvvvvvvvvvvvvvvvvv
value<2>:
vvvvvvvvvvvvvvvvvvvvvvvvvvvvvvv
.
.
value<n>:
vvvvvvvvvvvvvvvvvvvvvvvvvvvvvvv
nnnnnnnnnnnnnnnnnnnnnnnnnnnn0010
nnnnnnnnnnnnnnnnnnnnnnnnnnnn0110
xxxxxxxxxxxxxxxxxxxxxxxxxxxx1x1x
The following
Unlike PNX1300 Series systems [1], PNX17xx Series uses internal boot scripts to
provide some cost savings at board level by allowing the building of products without
the need of an external EEPROM. The following sections describes the content of
these scripts. If the content of these internal boot scripts is not suitable for the
PNX17xx Series based product, then an EEPROM should be used to override the
internal boot scripts, see
The three scripts have a common section which is the initial configuration sequence
of the PNX17xx Series system. The differences between the boot scripts is detailed
in the next sections. The common behavior is described bellow in the order in which it
happens:
1. Enable the clocks for the TM5250, 100 MHz, and the MMI, 125 MHz, modules.
2. Enable the clocks for the MMIO bus (a.k.a. the DCS Bus), 102 MHz, and the
PCI_SYS_CLK, 33.23 MHz, clocks.
Table 2
Rev. 1 — 17 March 2006
documents the coding of the four commands.
Section
4..
Description
Write a single 32-bit value, ‘V’ at address ‘A’ (32-bit
word aligned) MMIO bus or memory address.
‘A’ is the 30-bit value composed by the <a...a> bits
concatenated with two 0s (makes it a 32-bit word
address).
‘V’ is the 32-bit value composed by the <v...v> bits.
Write an arbitrary length list of 32-bit values,
value<1>,..., value<n>, starting at address ‘A’ (32-
bit aligned) MMIO bus or memory address.
value<1> is written at address ‘A’ + 0, value<n> is
written at the 32-bit word address ‘A+n-1’.
‘A’ is the 30-bit value composed by the <a...a> bits
concatenated with two 0s (makes it a 32-bit word
address).
Delay by N 27 MHz cycle periods.
Where N is the 28-bit value composed by the
<n...n> bits.
End boot process. The Boot module releases I2C
bus and becomes non-active until a hardware reset
or software reset occurs.
Reserved for future use.
© Koninklijke Philips Electronics N.V. 2006. All rights reserved.
PNX17xx Series
Chapter 6: Boot Module
6-6
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