CHAPTER 3 CPU FUNCTIONS
User’s Manual U15109EJ3V0UD
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3.2 CPU Register Set
The CPU registers of the V850/SC1, V850/SC2, and V850/SC3 can be classified into two categories: a general-
purpose program register set and a dedicated system register set. All the registers have a 32-bit width. For details,
refer to
V850 Series Architecture User’s Manual
.
Figure 3-1. CPU Register Set
r0
r1
r2
r3
r4
r5
r6
r7
r8
r9
r10
r11
r12
r13
r14
r15
r16
r17
r18
r19
r20
r21
r22
r23
r24
r25
r26
r27
r28
r29
r30
r31
Zero register
Reserved for address register
Stack pointer (SP)
Global pointer (GP)
Text pointer (TP)
Element pointer (EP)
Link pointer (LP)
PC
Program counter
PSW
Program status word
ECR
Exception cause register
FEPC
FEPSW
Fatal error PC
Fatal error PSW
EIPC
EIPSW
Exception/interrupt PC
Exception/interrupt PSW
31
0
31
0
31
0
31
0
31
0
31
0
System register set
Program register set