S3C2416X RISC MICROPROCESSOR
BUS PRIORITIES
4-1
4
BUS PRIORITIES
1 OVERVIEW
The bus arbitration logic determines the priorities of bus masters. It supports a combination of rotation priority
mode and fixed priority mode.
1.1 BUS PRIORITY MAP
The S3C2416 holds 16 masters on the AHB_S(System Bus), 9 masters on the AHB_I(Image Bus) and 9masters
on the APB Bus. The following list shows the priorities among these bus masters after a reset.
Priority
AHB_S BUS MASTERS
Comment
0 Reserved
1 HS-MMC1
2 DMA0
3 DMA1
4 DMA2
5 DMA3
6 DMA4
7 DMA5
8 Reserved
9 Reserved
10 UHOST
11 UDEVICE20
12 HS-MMC0
13 ARM926EJ
DBUS
14 ARM926EJ
IBUS
15 Default
1. Fix Type: all priority can be changed according to register value
stored in The System Controller.
2 Rotation Type: all masters’ priority can be rotatable according to
register value stored in The System Controller.
(Except for Default Masters)
Summary of Contents for S3C2416
Page 122: ...BUS MATRIX EBI S3C2416X RISC MICROPROCESSOR 3 4 NOTES ...
Page 204: ...DMA CONTROLLER S3C2416X RISC MICROPROCESSOR 8 18 NOTES ...
Page 284: ...WATCHDOG TIMER S3C2416X RISC MICROPROCESSOR 11 6 NOTES ...
Page 320: ...REAL TIME CLOCK S3C2416X RISC MICROPROCESSOR 13 16 NOTES ...
Page 344: ...UART S3C2416X RISC MICROPROCESSOR 14 24 NOTES ...
Page 380: ...USB2 0 DEVICE S3C2416X RISC MICROPROCESSOR 16 34 NOTES ...
Page 432: ...2D S3C2416X RISC MICROPROCESSOR 18 38 NOTES ...
Page 446: ...HS_SPI CONTROLLER S3C2416X RISC MICROPROCESSOR 19 14 NOTES ...
Page 604: ...S3C2416X RISC MICROPROCESSOR S3C2416X RISC MICROPROCESSOR 23 22 NOTES ...
Page 638: ...PCM AUDIO INTERFACE S3C2416X RISC MICROPROCESSOR 25 18 NOTES ...
Page 670: ...ELECTRICAL DATA S3C2416X RISC MICROPROCESSOR 26 32 NOTES ...