PNX1702EH/G,557 NXP Semiconductors, PNX1702EH/G,557 Datasheet - Page 148
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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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3. Timing Description
PNX17XX_SER_1
Preliminary data sheet
Figure 4:
module clocks
sys_rst_out_n
1. POR_IN_N is asserted for 100 s (min) after power stable. peri_rst_n and jtag_rst_n follows the assertion and the
2. All module resets sync to 27 MHz and all modules are reset at the same time. The Boot script can now kick off.
3. The boot script program switches to the default frequencies for the CPU and the DRAM clocks.
4. CPU and DRAM clocks are blocked in the clock module to ensure safe, glitch less switch over from initial 27 MHz.
5. Once the TM5250 has been released from reset it can release the sys_rst_out_n signal for external peripherals.
POR_IN_N
release of POR_IN_N. The Clock module kicks off 27 MHz clock to all modules.
peri_rst_n
jtag_rst_n
POR_IN_N Timing and Reset Sequence
Vdd
3.1 The Hardware Timing
Remark: Upon any of the described ways to reset the PNX17xx Series system the
s y s _ r s t _ o u t _ n r e m a i n s a s s e r t e d u n t i l a w r i t e w i t h 0 x 1 o c c u r s t o t h e
RST_CTL.REL_SYS_RST_OUT bit.
The assertion of POR_IN_N or RESET_IN_N signals causes the assertion of
peri_rst_n, sys_rst_out_n and jtag_rst_n (only when POR_IN_N is asserted). See
Figure
the PNX17xx Series modules receive the 27 MHz crystal oscillator input. The 27 MHz
clock remains active for all the modules until the registers in the Clock module are
programmed to switch from 27 MHz to their functional module clocks (either by the
boot scripts or by the TM5250). The use of this generic 27 MHz clock allow all the
modules to be reset synchronously.
After de-asserting the RESET_IN_N pin, the peri_rst_n is also de-asserted and all
modules release their internal resets synchronously. The PLLs come up to their
default values while POR_IN_N or RESET_IN_N are asserted. The Clock module will
safely (i.e. glitch free) switch clocks from the 27 MHz clock to the separate module
functional clocks.
Figure 4
is exactly the same when RESET_IN_N is asserted except that in that case the
jtag_rst_n signal is not asserted.
trst = 100 s (min)
4. When the Clock module receives the peri_rst_n signal, it ensures that all
details the hardware reset. Only POR_IN_N is shown. The reset sequence
1
Rev. 1 — 17 March 2006
27 MHz
2
3
Clocks switched
by Boot module
Released by a write to
REL_RST_SYS_OUT
4
© Koninklijke Philips Electronics N.V. 2006. All rights reserved.
PNX17xx Series
5
Chapter 4: Reset
6
4-7
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