PNX1301 PHILIPS [NXP Semiconductors], PNX1301 Datasheet - Page 446
PNX1301
Manufacturer Part Number
PNX1301
Description
Media Processors
Manufacturer
PHILIPS [NXP Semiconductors]
Datasheet
1.PNX1301.pdf
(548 pages)
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
PNX1301EH
Manufacturer:
MARVELL
Quantity:
335
Company:
Part Number:
PNX1301EH,557
Manufacturer:
NXP Semiconductors
Quantity:
10 000
Part Number:
PNX1301EH/G(ROHS)
Manufacturer:
PHILIPS/飞利浦
Quantity:
20 000
- Current page: 446 of 548
- Download datasheet (6Mb)
Philips Semiconductors
prefetch with index
SYNTAX
[ IF rguard ] prefr rsrc1 rsrc2
FUNCTION
DESCRIPTION
((rsrc1+rscr2) & cache_block_mask) and stores the data into the data cache. This operation is not guaranteed to be
executed. The prefetch unit will not execute this operation when the data to be prefetched is already in the data cache.
A prefr operation will not be executed when the cache is already occupied with 2 cache misses, when the operation is
issued.
execution of the prefetch operation. If the LSB of rguard is 1, prefetch operation is executed; otherwise, it is not
executed..
EXAMPLES
NOTE: This operation may only be supported in TM-1000, TM-1100, TM-1300 and
PNX1300/01/02/11. It is not guaranteed to be available in future generations of Trimedia
products.
r10 = 0xabcd, r12 = 0xd
cache_block_size = 0x40
r10 = 0xabcd, r11 = 0, r12=0xd,
cache_block_size = 0x40
r10 = 0xabff, r11 = 1, r12 =0x1,
cache_block_size = 0x40
The prefr operation loads the one full cache block size of memory value from the address computed by
The
i f rguard then {
}
cache_block_mask = ~(cache_block_size - 1)
data_cache <- mem[(rsrc1 + rscr2) & cache_block_mask]
prefr
Initial Values
operation optionally takes a guard, specified in rguard. If a guard is present, its LSB controls the
prefr r10 r12
IF r11 prefr r10 r12
IF r11 prefr r10 r12
Operation
PRELIMINARY SPECIFICATION
Loads a cache line for the address space from
0xabc0 to 0x0xac3f from the main memory. If the data
is already in the cache, the operation is not executed.
since guard is false, prefr operation is not executed
Loads a cache line for the address space from
0xac00 to 0x0xac3f from the main memory. If the data
is already in the cache, the operation is not executed.
PNX1300/01/02/11 DSPCPU Operations
Function unit
Operation code
Number of operands
Modifier
Modifier range
Latency
Issue slots
pref16x pref32x prefd
allocd allocr allocx
Result
ATTRIBUTES
SEE ALSO
dmemspec
prefr
210
No
2
5
-
-
A-148
Related parts for PNX1301
Image
Part Number
Description
Manufacturer
Datasheet
Request
R
Part Number:
Description:
General purpose CMOS timer
Manufacturer:
PHILIPS [NXP Semiconductors]
Datasheet:
Part Number:
Description:
5 V, 3.3 V and 2.5 V quad UART, 5 Mbit/s (max.) with 16-byte FIFOs
Manufacturer:
PHILIPS [NXP Semiconductors]
Datasheet:
Part Number:
Description:
Voltage regulator diodes
Manufacturer:
PHILIPS [NXP Semiconductors]
Datasheet:
Part Number:
Description:
XA 16-bit microcontroller family 32K/512 OTP/ROM/ROMless, watchdog, 2 UARTs
Manufacturer:
PHILIPS [NXP Semiconductors]
Datasheet:
Part Number:
Description:
5 V, 3.3 V and 2.5 V dual UART, 5 Mbit/s (max.), with 16-byte FIFOs
Manufacturer:
PHILIPS [NXP Semiconductors]
Datasheet:
Part Number:
Description:
5 V, 3.3 V and 2.5 V UART with 32-byte FIFOs and infrared (IrDA) encoder/decoder
Manufacturer:
PHILIPS [NXP Semiconductors]
Datasheet:
Part Number:
Description:
5V, 3.3 V and 2.5V dual UART, 5 Mbit/s (max.),with 32-byte FIFOs and infrared(IrDA) encoder/decoder
Manufacturer:
PHILIPS [NXP Semiconductors]
Datasheet:
Part Number:
Description:
5 V, 3.3 V and 2.5 V quad UART, 5 Mbit/s (max.), with 64-byte FIFOs and infrared (IrDA) encoder/decoder
Manufacturer:
PHILIPS [NXP Semiconductors]
Datasheet:
Part Number:
Description:
Single UART with I2C-bus/SPI interface, 64 bytes of transmit and receive FIFOs, IrDA SIR built-in support
Manufacturer:
PHILIPS [NXP Semiconductors]
Datasheet:
Part Number:
Description:
Master I-2C - bus controller with UART interface
Manufacturer:
PHILIPS [NXP Semiconductors]
Datasheet:
Part Number:
Description:
BTL stereo Class-D audio amplifier with I2S input
Manufacturer:
PHILIPS [NXP Semiconductors]
Datasheet:
Part Number:
Description:
3.4 W PDM input class-D audio amplifier
Manufacturer:
PHILIPS [NXP Semiconductors]
Datasheet:
Part Number:
Description:
TRIODE FOR USE AS GROUNDED GRID U.H.F. AMPLIFIER
Manufacturer:
PHILIPS [NXP Semiconductors]
Datasheet:
Part Number:
Description:
Specific Thales (NXP : BLA0912-250,112)
Manufacturer:
Philips Semiconductors
Part Number:
Description:
Specific Thales (NXP : MX0912B251Y,114)
Manufacturer:
Philips Semiconductors