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S3C4530A Datasheet(PDF) 36 Page - Samsung semiconductor

Part No. S3C4530A
Description  16/32-bit RISC microcontroller is a cost-effective, high-performance microcontroller
Download  432 Pages
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Maker  SAMSUNG [Samsung semiconductor]
Homepage  http://www.samsung.com/Products/Semiconductor
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S3C4530A Datasheet(HTML) 36 Page - Samsung semiconductor

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PROGRAMMER'S MODEL
S3C4530A
2-10
Table 2-1. PSR Mode. Bit Values
M[4:0]
Mode
Visible THUMB State Registers
Visible ARM State Registers
10000
User
R7..R0,
LR, SP
PC, CPSR
R14..R0,
PC, CPSR
10001
FIQ
R7..R0,
LR_fiq, SP_fiq
PC, CPSR, SPSR_fiq
R7..R0,
R14_fiq..R8_fiq,
PC, CPSR, SPSR_fiq
10010
IRQ
R7..R0,
LR_irq, SP_irq
PC, CPSR, SPSR_irq
R12..R0,
R14_irq..R13_irq,
PC, CPSR, SPSR_irq
10011
Supervisor
R7..R0,
LR_svc, SP_svc,
PC, CPSR, SPSR_svc
R12..R0,
R14_svc..R13_svc,
PC, CPSR, SPSR_svc
10111
Abort
R7..R0,
LR_abt, SP_abt,
PC, CPSR, SPSR_abt
R12..R0,
R14_abt..R13_abt,
PC, CPSR, SPSR_abt
11011
Undefined
R7..R0
LR_und, SP_und,
PC, CPSR, SPSR_und
R12..R0,
R14_und..R13_und,
PC, CPSR
11111
System
R7..R0,
LR, SP
PC, CPSR
R14..R0,
PC, CPSR
Reserved bits
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.


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