OM11077 NXP Semiconductors, OM11077 Datasheet - Page 35
OM11077
Manufacturer Part Number
OM11077
Description
MODULE DIMM LPC2478 ARM7
Manufacturer
NXP Semiconductors
Specifications of OM11077
Accessory Type
Module Card
For Use With/related Products
ARM-57TS-LPC2478
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Other names
568-4742
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NXP Semiconductors
UM10237_4
User manual
Table 30.
[1]
Bit
0
2:1
3
7:4
10:8
11
14:12 EP1
15
18:16 EP2
19
22:20 EP3
23
26:24 EP4
27
30:28 EP5
31
Allowed values for nnn are: 101 (highest priority), 100, 011, 010, 001 (lowest priority).
Symbol
scheduler
break_burst
quantum_type
quantum_size
default_master
-
-
-
-
-
-
AHB Arbiter Configuration register 1 (AHBCFG1 - address 0xE01F C188) bit
description
Rev. 04 — 26 August 2009
Value Description
0
1
00
01
10
11
0
1
0000
0001
0010
0011
0100
0101
0110
0111
1000
1001
1010
1011
1100
1101
1110
1111
nnn
-
nnn
-
nnn
-
nnn
-
nnn
--
nnn
-
[1]
[1]
[1]
[1]
[1]
[1]
Break all defined length bursts (the CPU does not create
Priority scheduling.
Uniform (round-robin) scheduling.
defined bursts).
Break all defined length bursts greater than four-beat.
Break all defined length bursts greater than eight-beat.
Never break defined length bursts.
A quantum is an AHB clock.
A quantum is an AHB bus cycle.
Controls the type of arbitration and the number of quanta
before re-arbiration occurs.
Preemptive, re-arbitrate after 1 AHB quantum.
Preemptive, re-arbitrate after 2 AHB quanta.
Preemptive, re-arbitrate after 4 AHB quanta.
Preemptive, re-arbitrate after 8 AHB quanta.
Preemptive, re-arbitrate after 16 AHB quanta.
Preemptive, re-arbitrate after 32 AHB quanta.
Preemptive, re-arbitrate after 64 AHB quanta.
Preemptive, re-arbitrate after 128 AHB quanta.
Preemptive, re-arbitrate after 256 AHB quanta.
Preemptive, re-arbitrate after 512 AHB quanta.
Preemptive, re-arbitrate after 1024 AHB quanta.
Preemptive, re-arbitrate after 2048 AHB quanta.
Preemptive, re-arbitrate after 4096 AHB quanta.
Preemptive, re-arbitrate after 8192 AHB quanta.
Preemptive, re-arbitrate after 16384 AHB quanta.
Non- preemptive, infinite AHB quanta.
Master 1 (CPU) is the default master.
Reserved.
External priority for master 1 (CPU).
Reserved.
External priority for master 2 (GPDMA).
Reserved.
External priority for master 3 (AHB1).
Reserved.
External priority for master 4 (USB).
Reserved.
External priority for master 5 (LCD).
Reserved.
Chapter 3: LPC24XX System control
UM10237
© NXP B.V. 2009. All rights reserved.
35 of 792
Reset
value
1
10
0100
001
-
-
-
-
-
-
0
000
000
000
000
000
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