ibm3206k0424 ETC-unknow, ibm3206k0424 Datasheet - Page 450

• Manufacturer Part Number: ibm3206k0424
• Description: Ibm Processor For Network Resources
• Manufacturer: ETC-unknow

IBM3206K0424
IBM Processor for Network Resources
Cobra Instruction Changes
Cobra Facilities Overview
The following registers are patterned after the registers in either the PowerPC 603 User’s Manual
(MPR603UMU-01,MPC603UM/AD) or the Power PC 401 Core User’s Manual (v0.07 1/28/978). Differences
between the two implementations and the Cobra Core implementations are detailed below.
The registers are split into these functional groupings: Machine Control/Status Registers, Branch Control
Registers, Debug Control Registers, Special Purpose Facilities, Interrupt and Exception Registers, Timer
Registers, Cache Control Registers, and Translation Control Registers.
Source Key:
Processor Core (PCORE)
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dccci, icbt, iccci
mfdcr, mtdcr
rfci, wrtee, wrteei
mfsr, mfsrin, mtsr, mtsrin
mftb
tlbie
tlbsync
mfbus, mtbus
dcread, icread
dcba
tlbre, tlbsx(.), tlbwe
eciwx, ecowx
fxxxxx
lfd, lfdu, lfdux, lfdx, lfs, lfsu, lfsux, lfsx
mffs, mffsb0, mffsb1, mffsf, mffsfi
stfd, stfdu, stfdux, stfdx, stfiwx, stfs,
stfsu, stfsux, stfsx
tlbld, tlbli
• BOTH - same bit definitions as 603 and 401
• 401 - same bit definitions as 401
• 603 - same bit definitions as 603
• PPC - same bit definitions as general Power PC architecture
• COBRA - COBRA Configuration
Instruction(s)
Cobra Core
Source
401
401
401
603
603
603
603
401
405
405
603
603
603
603
603
603
Added for cache management
Added for DCR bus support
Added for 40x interrupt support
Added for 60x MMU support (not supported this pass)
Added for 60x style time base support
Added for 60x MMU support (not supported this pass)
Added for 60x compatibility, acts as a no-op
Added - See Appendix: New instructions
Removed - cache layout is different
Not Supported - 405 only instruction
Removed - 40x style MMU not supported
Removed - only memory space addressing supported
Removed floating point support
Removed floating point support
Removed floating point support
Removed floating point support
Removed - 603 style MMU support, may add next pass
Description
pnr25.chapt05.01
August 14, 2000
Preliminary