ALXD800EEXJ2VC C3 AMD (ADVANCED MICRO DEVICES), ALXD800EEXJ2VC C3 Datasheet - Page 652

• Manufacturer Part Number: ALXD800EEXJ2VC C3
• Manufacturer: AMD (ADVANCED MICRO DEVICES)

Specifications of ALXD800EEXJ2VC C3

• Operating Temperature (min): 0C
• Operating Temperature (max): 85C
• Operating Temperature Classification: Commercial
• Mounting: Surface Mount
• Lead Free Status / RoHS Status: Not Compliant

8.3.4.7
Operation
Description
The RSM instruction restores the state of the processor from the System Management Mode (SMM) header, and then
jumps to the address indicated by the NEXT_IP field of the SMM header. Below is the format of the SMM header.
Flags Affected
All bits of the EFlags register is restored from the SMM header.
Exceptions
#UD
is not in DMM.
652
31 30 29 28 27 26 25 24 23 22 21 20 19 18 17 16 15 14 13 12 11 10 9
IF (CPL<>0 OR (SMM_INST_EN=0 AND SMM=0 AND DMM=0))
ELSE
G
G
Opcode
0F AA
D
B
0 Av
0 Av
If current privilege level is not 0, or the SMM_INST_EN = 0 and if the processor is not in SMM and if the processor
RSM - Leave System Management Mode
#UD;
SMM_CTL <= SMM_HEADER[SMM_CTL];
SS.FLAGS <= SMM_HEADER[SS.FLAGS];
CPL <= SMM_HEADER[SS.DPL];
CS.LIMIT <= SMM_HEADER[CS.LIMIT];
CS.BASE <= SMM_HEADER[CS.BASE]
CS.SELECTOR <= SMM_HEADER[CS.SELECTOR];
CS.FLAGS <= SMM_HEADER[CS.FLAGS];
CR0 <= SMM_HEADER[CR0];
EFLAGS <= SMM_HEADER[EFLAGS];
IF (!DMM_CTL.DBG_AS_DMI)
IF (SMM_HEADER[N])
else
IF (SMM_HEADER[H])
ELSE
Instruction
RSM
DR7 <= SMM_HEADER[DR7];
SMM <= 1;
SMM <= 0;
HALT PROCESSOR;
JUMP to CS at OFFSET of SMM_HEADER[NEXT_IP];
0
0
0
0
33234H
CS_FLAGS
SS_FLAGS
1
1
DPL
DPL
1
1
1 Cf R
0
I/O SIZE
E W A
Clocks
36
CURRENT_IP
SMM_CTL
CS_BASE
I/O_DATA
NEXT_IP
EFlags
A
DR7
CR0
0
c
r
Description
Return from SMI
CS_LIMIT[19:0]
Code Segment Selector
I/O ADDRESS[15:0]
INDEX
SMM Flags
AMD Geode™ LX Processors Data Book
N
8
7
V
X
6
M H
5
4
S
3
TI
P
2
Instruction Set
1
I
RPL
c
0
w
-1C
-2C
-10
-14
-18
-20
-24
-28
-30
-34
-C
-4
-8