QB-78K0MINI Renesas Electronics America, QB-78K0MINI Datasheet - Page 46

• Manufacturer Part Number: QB-78K0MINI
• Description: 78K0 MINICUBE SER ON CHIP DEBUG
• Manufacturer: Renesas Electronics America

Specifications of QB-78K0MINI

• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

6.1 Cautions When On-chip Debug
44
(1) Reserved area used by QB-78K0MINI
(2) Values at addresses 0x02, 0x03 and 0x8F or higher
(3) Values specified by linker option -go
0x8F. 0xFF is always displayed in the Memory window in order to prevent errors that occur by changing the
value. Uploaded data is also displayed as 0xFF. In addition, on-chip debugging cannot be performed on these
areas after they are overwritten by self programming.
device with 10 or more SFRs that can be accessed in 16-bit units, expand the program area for on-chip
debugging (default: 257 bytes of 0x8F to 0x18F) by the amount exceeding the 10-SFR area. As a rough guide,
add the number of exceeding registers x 6 bytes.
with the linker option.
The following reserved areas are used by QB-78K0MINI.
Values other than 0xFF cannot be downloaded to address 0x02, 0x03 or the program area starting from address
Among the reserved areas used by QB-78K0MINI, the following areas can be secured using the linker option -go.
Specify the -go option default value, 256, for the program size for on-chip debugging.
When using the pseudo real-time RAM monitor function, expand the program area by 256 bytes. When using a
Specify the size of the program area as “default size (257 bytes) + (the number of exceeding registers x 6 bytes)
The value specified by the option may change when the function is extended in future.
(a) Flash memory area
(b) Internal extended RAM area
(c) Internal high-speed RAM area
Standard
Addresses 0x02 and 0x03
Addresses 0x7E and 0x7F (when using a software break)
Address 0x84
Addresses 0x85 to 0x8E
Addresses 0x8F to 0x18F: Standard value of program
Addresses 0xF7F0 to 0xF7FF
7 bytes as stack area: Standard value of stack
Addresses 0x02 and 0x03
(Size of program specified from address 0x8F) +1
(+256 bytes when using pseudo real-time RAM monitor function)
(when using a device with 10 or more SFRs the can be accessed in 16-bit units: +n (the number of
exceeding registers x 6 bytes))
(when using pseudo real-time RAM monitor function)
(+2 bytes when using software breaks)
(+7 bytes when using pseudo real-time RAM monitor function)
256
Value Specified by Option
CHAPTER 6 CAUTIONS
User’s Manual U17029EJ3V0UM
257
Program Size
0x8F to 0x18F
Program Area