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MB91155 Scheda tecnica(PDF) 21 Page - fujitsu semiconductor

Il numero della parte MB91155
Spiegazioni elettronici  32-bit Proprietary Microcontrollers
PDF  105 Pages
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Produttore elettronici  FUJITSU [fujitsu semiconductor]
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MB91F155A/MB91155/MB91154
21
3.
Registers
The family of FR microcontrollers has two types of registers : the registers residing in the CPU which are dedicated
to applications and the general-purpose registers residing in the memory.
• Dedicated registers :
• Program status (PS)
The PS register holds program status and is further divided into three registers which are a Condition Code
Register (CCR) , a System condition Code Register (SCR) , and an Interrupt Level Mask register (ILM) .
Program counter (PC)
: A 32-bit register to indicate the location where an instructions is stored.
Program status (PS)
: A 32-bit register to store a register pointer or a condition code.
Tablebase register (TBR)
: Holds the vector table lead address used when EIT (exceptions/interrupt/
trap) is processed.
Return pointer (RP)
: Holds the address to return from a subroutine to.
System stack pointer (SSP)
: Points to the system stack space.
User stack pointer (USP)
: Points to the user stack space.
Multiplication and division result register (MDH/MDL) : A 32-bit multiplication and division register.
PC
PS
TBR
RP
SSP
USP
MDH
MDL
Program counter
Program status
Tablebase register
Return pointer
System stack pointer
User stack pointer
Multiplication and division register
(Undefined)
(Undefined)
(Undefined)
(Undefined)
(Undefined)
XXXX XXXXH
XXXX XXXXH
XXXX XXXXH
XXXX XXXXH
XXXX XXXXH
0000 0000H
000F FC00H
32 bit
Initial value
PS
ILM4 ILM3 ILM2
ILM
SCR
CCR
ILM1 ILM0
D1
D0
T
S
I
N
Z
V
C
0
1
2
3
4
5
6
7
8
9
10
16
17
18
19
20
31
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