3069RF-ZTAT Datasheet, PDF (103/1003 Pages) Renesas Technology Corp – RENESAS 16-BIT SINGLE-CHIP MICROCOMPUTER

CCR
SP
SP
PC
R1L
H'FFFEFA
H'FFFEFB
PC
H'FFFEFC
H'FFFEFD
H'FFFEFF
SP
TRAPA instruction executed
MOV. B R1L, @-ER7
SP set to H'FFFEFF
Data saved above SP
CCR contents lost
[Legend]
CCR: Condition code register
PC: Program counter
R1L: General register R1L
SP: Stack pointer
Note: The diagram illustrates modes 3 and 4.
Figure 4.6 Operation when SP Value is Odd
Rev. 5.0, 09/04, page 81 of 978