Renesas RL78 Series User Manual page 65

RL78/G1D
(2) CALLT instruction table area
The 64-byte area 00080H to 000BFH can store the subroutine entry address of a 2-byte call instruction (CALLT). Set
the subroutine entry address to a value in a range of 00000H to 0FFFFH (because an address code is of 2 bytes).
To use the boot swap function, set a CALLT instruction table also at 01080H to 010BFH.
(3) Option byte area
A 4-byte area of 000C0H to 000C3H can be used as an option byte area. Set the option byte at 010C0H to 010C3H
when the boot swap is used. For details, see CHAPTER 25 OPTION BYTE.
(4) On-chip debug security ID setting area
A 10-byte area of 000C4H to 000CDH and 010C4H to 010CDH can be used as an on-chip debug security ID setting
area. Set the on-chip debug security ID of 10 bytes at 000C4H to 000CDH when the boot swap is not used and at
000C4H to 000CDH and 010C4H to 010CDH when the boot swap is used. For details, see CHAPTER 27 ON-CHIP
DEBUG FUNCTION.
R01UH0515EJ0120 Rev.1.20
Dec 16, 2016
CHAPTER 4 CPU ARCHITECTURE
44