s3c4510b Samsung Semiconductor, Inc., s3c4510b Datasheet - Page 36

• Manufacturer Part Number: s3c4510b
• Description: 16/32-bit Risc Microcontroller
• Manufacturer: Samsung Semiconductor, Inc.

PROGRAMMER'S MODEL
Reserved bits
2-10
10000
10001
10010
10011
10111
11011
11111
M[4:0]
User
FIQ
IRQ
Supervisor
Abort
Undefined
System
Mode
The remaining bits in the PSRs are reserved. When changing a PSR s flag or
control bits, you must ensure that these unused bits are not altered. Also, your
program should not rely on them containing specific values, since in future
processors they may read as one or zero.
R7..R0,
LR, SP
PC, CPSR
R7..R0,
LR_fiq, SP_fiq
PC, CPSR, SPSR_fiq
R7..R0,
LR_irq, SP_irq
PC, CPSR, SPSR_irq
R7..R0,
LR_svc, SP_svc,
PC, CPSR, SPSR_svc
R7..R0,
LR_abt, SP_abt,
PC, CPSR, SPSR_abt
R7..R0
LR_und, SP_und,
PC, CPSR, SPSR_und
R7..R0,
LR, SP
PC, CPSR
Visible THUMB State Registers
Table 2-1. PSR Mode. Bit Values
R14..R0,
PC, CPSR
R7..R0,
R14_fiq..R8_fiq,
PC, CPSR, SPSR_fiq
R12..R0,
R14_irq..R13_irq,
PC, CPSR, SPSR_irq
R12..R0,
R14_svc..R13_svc,
PC, CPSR, SPSR_svc
R12..R0,
R14_abt..R13_abt,
PC, CPSR, SPSR_abt
R12..R0,
R14_und..R13_und,
PC, CPSR
R14..R0,
PC, CPSR
Visible ARM State Registers
S3C4510B