UPD784938 Datasheet, PDF (545/733 Pages) NEC – 16-Bit Single-Chip Microcontrollers

CHAPTER 23 INTERRUPT FUNCTIONS
Figure 23-8. Return from BRKCS Instruction Software Interrupt (RETCSB instruction operation)
PC19 to 16
PC15 to 0
1 Restoration
2 Restoration
4 Restoration
(to original
register bank)
PSW
Register bank n (n = 0 to 7)
A
X
B
C
R5
R4
RETCSB instruction operand
R7
R6
3 Transfer
V
VP
U
UP
T
D
E
W
H
L
Preliminary User’s Manual U13987EJ1V0UM00
545