upd78f0103hmca1-5a4-a Renesas Electronics Corporation., upd78f0103hmca1-5a4-a Datasheet - Page 331

• Manufacturer Part Number: upd78f0103hmca1-5a4-a
• Description: 8-bit Single-chip Microcontrollers
• Manufacturer: Renesas Electronics Corporation.

Address: 0081H/1081H, 0082H/1082H, 0083H/1083H
Address: 0084H/1084H
Note Be sure to set 00H to 0081H, 0082H, and 0083H, as these addresses are reserved areas. Also set 00H to
Note Be sure to set 00H (on-chip debug operation disabled) to 0084H, as 78K0/KB1+ has not equipped the on-
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,
1081H, 1082H, and 1083H because 0081H, 0082H, and 0083H are switched with 1081H, 1082H, and
1083H when the boot swap operation is used.
chip debug function. Also set 00H to 1084H because 0084H and 1084H are switched at boot swapping.
see CHAPTER 16 RESET FUNCTION.
CSEG
DB
DB
DB
DB
OCDEN1
Other than above
7
0
7
0
0
Note
AT 0080H
00H
00H
00H
00H
00H
OCDEN0
6
0
6
0
0
; Crystal/ceramic oscillator
; Internal oscillator can be stopped by software.
; Reserved area
; Reserved area
; Reserved area
; On-chip debug operation disabled
Figure 20-1. Format of Option Byte (2/2)
Operation disabled
Setting prohibited
CHAPTER 20 OPTION BYTE
5
0
5
0
User’s Manual U16846EJ3V0UD
Note
4
0
4
0
On-chip debug operation control
3
0
3
0
2
0
2
0
OCDEN1
1
0
1
OCDEN0
0
0
0
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