mpc823rg Freescale Semiconductor, Inc, mpc823rg Datasheet - Page 1250

• Manufacturer Part Number: mpc823rg
• Description: Mpc823 Powerquicc Integrated Communications Processor For Portable Systems
• Manufacturer: Freescale Semiconductor, Inc

Freescale Semiconductor, Inc.
For More Information On This Product,
NOTE: mfspr is supervisor-level only if SPR[0] = 1.
NOTES:
POWERPC ARCHITECTURE
DECIMAL
MPC823 REFERENCE MANUAL
794
795
796
797
798
799
816
817
818
824
825
826
Go to: www.freescale.com
1.
2.
3.
4.
UISA/OEA
LEVEL
The order of the two 5-bit halves of the SPR number is reversed
compared with actual instruction coding.
Sets the EE Bit in the MSR.
Clears the EE Bit in the MSR.
Development Support (Debug) Register.
For mtspr and mfspr instructions, the SPR number coded in
assembly language does not appear directly as a 10-bit binary
number in the instruction. The number coded is split into two 5-bit
halves that are reversed in the instruction, with the high-order five bits
appearing in bits 16–20 of the instruction and the low-order five bits
in bits 11–15.
SPR[5–9]
11000
11000
11000
11000
11000
11000
11001
11001
11001
11001
11001
11001
SPR
1
SPR[0–4]
11010
11011
11100
11101
11110
11111
10000
10001
10010
11000
11001
11010
SUPERVISOR
LEVEL
MPC823 Instruction Set—mfspr
MI_DBRAM0
MI_DBRAM1
MD_DBCAM
MI_DBRAM0
MI_DBRAM1
MI_DBCAM
REGISTER
MD_TWC
MD_EPN
MD_RPN
M_TWB
MD_AP
NAME
M_TW
OPTIONAL
Supervisor
Supervisor
Supervisor
Supervisor
Supervisor
Supervisor
Supervisor
Supervisor
Supervisor
Supervisor
Supervisor
Supervisor
ACCESS
FORM
XFX
B-97