upd78f0114hgb-8es-a Renesas Electronics Corporation., upd78f0114hgb-8es-a Datasheet - Page 380

• Manufacturer Part Number: upd78f0114hgb-8es-a
• Description: 8-bit Single-chip Microcontrollers
• Manufacturer: Renesas Electronics Corporation.

380
Address: 0084H/1084H
Notes 1.
Remark For the on-chip debug security ID, see CHAPTER 24 ON-CHIP DEBUG FUNCTION ( PD78F0114HD
Here is an example of description of the software for setting the option bytes.
OPT
OPTION: DB
Remark Referencing of the option byte is performed during reset processing. For the reset processing timing,
2.
ONLY).
see CHAPTER 18 RESET FUNCTION.
CSEG
DB
DB
DB
DB
Be sure to set 00H (on-chip debug operation disabled) to 0084H for products not equipped with the on-
chip debug function ( PD78F0112H, 78F0113H, 78F0114H). Also set 00H to 1084H because 0084H
and 1084H are switched at boot swapping.
To use the on-chip debug function with a product equipped with the on-chip debug function
( PD78F0114HD), set 02H or 03H to 0084H. Set a value that is the same as that of 0084H to 1084H
because 0084H and 1084H are switched at boot swapping.
OCDEN1
7
0
0
0
1
1
Notes1, 2
AT 0080H
00H
00H
00H
00H
00H
OCDEN0
6
0
0
1
0
1
; Crystal/ceramic oscillator
; Internal oscillator can be stopped by software.
; Reserved area
; Reserved area
; Reserved area
; On-chip debug operation disabled
Figure 22-1. Format of Option Byte (2/2)
Operation disabled
Setting prohibited
Operation enabled. Does not erase data of the flash memory in case authentication
of the on-chip debug security ID fails.
Operation enabled. Erases data of the flash memory in case authentication of the
on-chip debug security ID fails.
5
0
CHAPTER 22 OPTION BYTE
User’s Manual U16961EJ4V0UD
4
0
On-chip debug operation control
3
0
2
0
OCDEN1
1
OCDEN0
0