AMD M56 Reference Manual page 35

IMP_N_VALUE_R_BACK (R)
IMP_P_VALUE_R_BACK (R)
IMP_CAL_COUNT (R)
TEST_OUT_R_BACK (R)
DUMMY_OUT_R_BACK (R)
Impedance control status register. Channel pair B only.
Field Name
DIR0
DIR1
DIR2
DIR3
DIR4
CKW0
CKW1
CKW2
CKW3
CKW4
© 2007 Advanced Micro Devices, Inc.
Proprietary
19:16 0x0 Calibrated N drive read back value.
23:20 0x0 Calibrated P drive read back value.
27:24 0x0 Impedance calibrated count.
28 0x0 Test output read back value.
29 0x0 Dummy output read back value.
MC_RBS_MAP - RW - 32 bits - MCIND:0xB0
Bits Default
1:0 0x0 Selects route to node 0.
3:2 0x0 Selects route to node 1.
5:4 0x0 Selects route to node 2.
7:6 0x0 Selects route to node 3.
9:8 0x0 Selects route to node 4.
11:10 0x0 Selects flow control signals from node 0 in clockwise route.
13:12 0x0 Selects flow control signals from node 1 in clockwise route.
15:14 0x0 Selects flow control signals from node 2 in clockwise route.
17:16 0x0 Selects flow control signals from node 3 in clockwise route.
19:18 0x0 Selects flow control signals from node 4 in clockwise route.
Description
0=ClocKWise
1=Counter-ClockWise
2=BYPass
3=TIE
0=ClocKWise
1=Counter-ClockWise
2=BYPass
3=TIE
0=ClocKWise
1=Counter-ClockWise
2=BYPass
3=TIE
0=ClocKWise
1=Counter-ClockWise
2=BYPass
3=TIE
0=ClocKWise
1=Counter-ClockWise
2=BYPass
3=TIE
0=Group 0
1=Group 1
2=Group 2
3=Block
0=Group 0
1=Group 1
2=Group 2
3=Block
0=Group 0
1=Group 1
2=Group 2
3=Block
0=Group 0
1=Group 1
2=Group 2
3=Block
0=Group 0
1=Group 1
2=Group 2
3=Block
M56 Register Reference Manual
Memory Controller Registers
2-29