mpc823rg Freescale Semiconductor, Inc, mpc823rg Datasheet - Page 1248
mpc823rg
Manufacturer Part Number
mpc823rg
Description
Mpc823 Powerquicc Integrated Communications Processor For Portable Systems
Manufacturer
Freescale Semiconductor, Inc
Datasheet
1.MPC823RG.pdf
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Freescale Semiconductor, Inc.
For More Information On This Product,
Simplified mnemonics:
In the PowerPC OEA, the SPR field denotes a special-purpose
register, encoded as shown in the table below. The contents of
the designated SPR are placed into r D. SPR[0] = 1 if and only if
reading the register is supervisor-level. Execution of this
instruction specifying a defined and supervisor-level register
when MSR[PR] = 1 will result in a priviledged instruction type
program exception.
If MSR[PR] = 1, the only effect of executing an instruction with
an SPR number that is not shown in the table below and has
SPR[0] = 1 is to cause a supervisor-level instruction type
program exception or an illegal instruction type program
exception. For all other cases, MSR[PR] = 0 or SPR[0] = 0. If the
SPR field contains any value that is not shown in the table, either
an illegal instruction type program exception occurs or the
results are boundedly undefined.
Other registers altered:
•
mfxer
mflr
mfctr
DECIMAL
None
MPC823 REFERENCE MANUAL
144
145
18
19
22
26
27
80
81
1
8
9
Go to: www.freescale.com
r D
r D
r D
SPR[5–9]
00000
00000
00000
00000
00000
00000
00000
00000
00010
00010
00100
00100
SPR
1
equivalent to
equivalent to
equivalent to
SPR[0–4]
00001
01000
01001
10010
10011
10110
11010
11011
10000
10001
MPC823 Instruction Set—mfspr
REGISTER
CMPA
CMPB
DSISR
NAME
SRR0
SRR1
EID
XER
CTR
DAR
DEC
EIE
LR
2
3
4
4
mfspr
mfspr
mfspr
Supervisor
Supervisor
Supervisor
Supervisor
Supervisor
Supervisor
Supervisor
Supervisor
Supervisor
ACCESS
User
User
User
r D ,1
r D ,8
r D ,9
B-95
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