MB95710M Series
MB95770M Series
Document Number: 002-09307 Rev. *D
Page 38 of 172
15. Areas For Specific Applications
The general-purpose register area and vector table area are used for the specific applications.
• General-purpose register area (Addresses: 0x0100 to 0x01FF)
• This area contains the auxiliary registers used for 8-bit arithmetic operations, transfer, etc.
• As this area forms part of the RAM area, it can also be used as conventional RAM.
• When the area is used as general-purpose registers, general-purpose register addressing enables high-speed ac-
cess with short instructions.
• Non-volatile register data area (Addresses: 0xFFBB to 0xFFBF)
• The area from 0xFFBB to 0xFFBF is used to store data of the non-volatile register. For details, refer to “CHAPTER
28 NON-VOLATILE REGISTER (NVR) INTERFACE” in “New 8FX MB95710M/770M Series Hardware Manual”
• Vector table area (Addresses: 0xFFC0 to 0xFFFF)
• This area is used as the vector table for vector call instructions (CALLV), interrupts, and resets.
• The top of the Flash memory area is allocated to the vector table area. The start address of a service routine is set
to an address in the vector table in the form of data.
“Interrupt Source Table” lists the vector table addresses corresponding to vector call instructions, interrupts, and re-
sets.
For details, refer to “CHAPTER 4 RESET”, “CHAPTER 5 INTERRUPTS”, and “A.2 Special Instruction
■
Special In-
struction
●
CALLV #vct” in “APPENDIX” in “New 8FX MB95710M/770M Series Hardware Manual”.
• Direct bank pointer and access area
*: Due to the memory size limit, the available access area is up to “0x028F” in MB95F714J/F714M/F774J/
F774M.
Direct bank pointer (DP[2:0])
Operand-specified dir
Access area
0bXXX (It does not affect mapping.)
0x0000 to 0x007F
0x0000 to 0x007F
0b000 (Initial value)
0x0090 to 0x00FF
0x0090 to 0x00FF
0b001
0x0080 to 0x00FF
0x0100 to 0x017F
0b010
0x0180 to 0x01FF
0b011
0x0200 to 0x027F
0b100
0x0280 to 0x02FF*
0b101
0x0300 to 0x037F
0b110
0x0380 to 0x03FF
0b111
0x0400 to 0x047F
