UPD78F9222MC(T)-5A4-A NEC, UPD78F9222MC(T)-5A4-A Datasheet - Page 327

8BIT MCU, 4K FLASH, 256B RAM, 78F9222

UPD78F9222MC(T)-5A4-A

Manufacturer Part Number
UPD78F9222MC(T)-5A4-A
Description
8BIT MCU, 4K FLASH, 256B RAM, 78F9222
Manufacturer
NEC
Datasheet

Specifications of UPD78F9222MC(T)-5A4-A

Controller Family/series
UPD78
No. Of I/o's
17
Ram Memory Size
256Byte
Cpu Speed
10MHz
No. Of Timers
4
No. Of
RoHS Compliant
Core Size
8bit
Program Memory Size
4KB
Oscillator Type
External, Internal

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19.2 Securing of user resources
implement each debug function. For details of the setting, refer to QB-MINI2 User’s Manual (U18371E).
• Securement of memory space
• Securement of serial interface for communication
The shaded portions in Figure 19-6 are the areas reserved for placing the debug monitor program, so user
programs cannot be allocated in these spaces.
The register settings, concerning the INTP3 pin used for communication between QB-MINI2 and the target
device, performed by the debug monitor program must not be changed.
The user must prepare the following to perform communication between QB-MINI2 and the target device and
INTP3 interrupt vector (2 bytes)
for software break (2 bytes)
Figure 19-6. Memory Spaces Where Debug Monitor Programs Are Allocated
Internal ROM space
304 bytes
CHAPTER 19 ON-CHIP DEBUG FUNCTION
Internal ROM
end address
User’s Manual U16898EJ5V0UD
0x7EH
0x18H
Stack area for debugging
Internal RAM space
(5 bytes)
Internal RAM
end address
327

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