Preliminary
INTERRUPT CONTROLLER
S3C2451X RISC MICROPROCESSOR
10-26
Preliminary product information describe products that are in development,
for which full characterization data and associated errata are not yet available.
Specifications and information herein are subject to change without notice.
PRIORITY_MODE1 Bit
Description
Initial
State
ARB_SEL3
[14:12]
Arbiter 3 group priority order set
1) ARB_MODE3 = 1’b0
00 = REQ 0-1-2-3-4-5
01 = REQ 0-2-3-4-1-5
10 = REQ 0-3-4-1-2-5
11 = REQ 0-4-1-2-3-5
2) ARB_MODE3 = 1’b1
000 = REQ 0-1-2-3-4-5
001 = REQ 1-2-3-4-5-0
010 = REQ 2-3-4-5-0-1
011 = REQ 3-4-5-0-1-2
100 = REQ 4-5-0-1-2-3
101 = REQ 5-0-1-2-3-4
0
ARB_MODE2
[11]
Arbiter 2 group priority mode selection
0 = Fixed ends & Rotate middle 1 = Rotate all
0
ARB_SEL2
[10:8]
Arbiter 2 group priority order set
1) ARB_MODE2 = 1’b0
00 = REQ 0-1-2-3-4-5
01 = REQ 0-2-3-4-1-5
10 = REQ 0-3-4-1-2-5
11 = REQ 0-4-1-2-3-5
2) ARB_MODE2 = 1’b1
000 = REQ 0-1-2-3-4-5
001 = REQ 1-2-3-4-5-0
010 = REQ 2-3-4-5-0-1
011 = REQ 3-4-5-0-1-2
100 = REQ 4-5-0-1-2-3
101 = REQ 5-0-1-2-3-4
0
ARB_MODE1
[7]
Arbiter 1 group priority mode selection
0 = Fixed ends & Rotate middle 1 = Rotate all
0
ARB_SEL1
[6:4]
Arbiter 1 group priority order set
1) ARB_MODE1 = 1’b0
00 = REQ 0-1-2-3-4-5
01 = REQ 0-2-3-4-1-5
10 = REQ 0-3-4-1-2-5
11 = REQ 0-4-1-2-3-5
2) ARB_MODE1 = 1’b1
000 = REQ 0-1-2-3-4-5
001 = REQ 1-2-3-4-5-0
010 = REQ 2-3-4-5-0-1
011 = REQ 3-4-5-0-1-2
100 = REQ 4-5-0-1-2-3
101 = REQ 5-0-1-2-3-4
0
ARB_MODE0
[3]
Arbiter 0 group priority mode selection
0 = Fixed ends & Rotate middle
0
ARB_SEL0
[2:0]
Arbiter 0 group priority order set
1) ARB_MODE0 = 1’b0
00 = REQ 0-1-2-3-4-5
01 = REQ 0-2-3-4-1-5
10 = REQ 0-3-4-1-2-5
11 = REQ 0-4-1-2-3-5
0