Datasheet

78K0/Ix2 CHAPTER 24 OPTION BYTE
R01UH0010EJ0500 Rev.5.00 650
Feb 28, 2012
Figure 24-1. Format of Option Byte (3/3)
Address: 0083H/1083H
Note
7 6 5 4 3 2 1 0
0 0 0 1 1 1 OCDPSEL 0
OCDPSEL Pin selection used during on-chip debugging
0 TOOLC1/P31, TOOLD1/P32
1 TOOLC0/X1, TOOLD0/X2
Note Set a value that is the same as that of 0083H to 1083H because 0083H and 1083H are switched during the boot
swap operation.
Caution Be sure to clear bits 7 to 5 and 0 to “0” and set bits 4 to 2 to “1”.
Address: 0084H/1084H
Note
7 6 5 4 3 2 1 0
0 0 0 0 0 0 OCDEN1 OCDEN0
OCDEN1 OCDEN0 On-chip debug operation control
0 0 Operation disabled
0 1 Setting prohibited
1 0 Operation enabled. Does not erase data of the flash memory in case authentication
of the on-chip debug security ID fails.
1 1 Operation enabled. Erases data of the flash memory in case authentication of the
on-chip debug security ID fails.
Note Set a value that is the same as that of 0084H to 1084H because 0084H and 1084H are switched during the boot
swap operation.
Caution Be sure to clear bits 7 to 2 to “0”.
Remark For the on-chip debug security ID, refer to CHAPTER 26 ON-CHIP DEBUG FUNCTION.