PNX1500E NXP Semiconductors, PNX1500E Datasheet - Page 122
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PNX1500E
Manufacturer Part Number
PNX1500E
Description
Manufacturer
NXP Semiconductors
Datasheet
1.PNX1500E.pdf
(828 pages)
Specifications of PNX1500E
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Table 5: Interrupt Source Assignments
Table 6: TM3260 Timer Source Selection
PNX15XX_PNX952X_SER_N_4
Product data sheet
SOURCE NAME
DCS
MMI
Reserved
SOURCE NAME
TM3260 CLOCK
PRESCALE
Reserved
DATABREAK
INSTBREAK
CACHE1
CACHE2
VDI_CLK1
VDI_CLK2
VDO_CLK1
VDO_CLK2
AI_WS
AO_WS
GPIO_TIMER0
GPIO_TIMER1
REFERENCE_CLOCK
6.2 Timers
SOURCE
NUMBER
60
61
62...63
SOURCE NUMBER
0
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
The TM3260 CPU contains four programmable timer/counters, all with the same
function. The first three (TIMER1, TIMER2, TIMER3) are intended for general use.
The fourth timer/counter (SYSTIMER) is reserved for use by the system software and
should not be used by applications.
Each timer/counter can be set to count one of the event types specified in
Note that source 3 to 6 are special TM3260 events used for program debug support
as well as cache performance monitoring. Full description can be found in [1]. For all
the other source signals, like the VDO_CLK1 pin, positive-going edges on the signal
are counted. Each timer increments its value until the programmed count is reached.
On the clock cycle when the timer reaches its programmed count value, an interrupt
is generated.
The timer interrupt source mode should be set as edge-sensitive as presented in
Table
5. No software interrupt acknowledge to the timer device is necessary.
INTERRUPT
OPERATING MODE
level
level
n/a
Rev. 4.0 — 03 December 2007
SOURCE DESCRIPTION
The CPU clock
Pre-scaled CPU clock
Reserved for future devices
Data breakpoints
Instruction breakpoints
Cache event 1
Cache event 2
VIP clock pin
FGPI clock pin
QVCP clock pin
FGPO clock pin
AI Word Strobe pin
AO Word Strobe pin
GPIO pin selection 0
GPIO pin selection 1
The 27 MHz input crystal clock
SOURCE DESCRIPTION
Internal DCS bus
Main Memory Interface, i.e. the DRAM controller
Reserved for future devices
Chapter 3: System On Chip Resources
PNX15xx/952x Series
© NXP B.V. 2007. All rights reserved.
Table
6.
3-122
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