28
CHAPTER 2 CPU
■
ROM Area
●
Vector table area (address: FFFC00
H
to FFFFFF
H
)
This area is used as a vector table for vector call instructions, interrupt vectors, and reset vectors.
This area is allocated at the highest addresses of the ROM area. The start address of the corresponding
processing routine is set as data in each vector table address.
●
Program area (address: Up to FFFBFF
H
)
ROM is built in as an internal program area.
The size of built-in ROM differs for each model.
■
RAM Area
●
Data area (address: From 000100
H
to 0010FF
H
(for 4KByte))
The static RAM is built in as an internal data area.
The size of built-in RAM differs for each model.
●
General-purpose register area (address: 000180
H
to 00037F
H
)
Auxiliary registers used for 8-bit, 16-bit, and 32-bit arithmetic operations and transfer are allocated in this
area.
Since this area is allocated to a part of the RAM area, it can be used as ordinary RAM.
When this area is used as a general-purpose register, general-purpose register addressing enables high-
speed access with short instructions.
●
Extended intelligent I/O service (EI
2
OS) descriptor area (address: 000100H to 00017F
H
)
This area retains the transfer modes, I/O addresses, transfer count, and buffer addresses.
Since this area is allocated to a part of the RAM area, it can be used as ordinary RAM.
■
I/O Area
●
Interrupt control register area (address: 0000B0
H
to 0000BF
H
)
The interrupt control registers (ICR00 to ICR15) correspond to all peripheral functions that have an
interrupt function. These registers set interrupt levels and control the extended intelligent I/O service
(EI
2
OS).
●
Peripheral function control register area (address: 000020
H
to 0000AF
H
)
This register controls the built-in peripheral functions and inputs and outputs data.
●
I/O port control register area (address: 000000
H
to 00001F
H
)
This register controls I/O ports, and inputs and outputs data.
Содержание MB90390 Series
Страница 2: ......
Страница 4: ......
Страница 17: ...xiii APPENDIX D List of Interrupt Vectors 690 INDEX 695 ...
Страница 18: ...xiv ...
Страница 132: ...104 CHAPTER 5 CLOCKS ...
Страница 152: ...124 CHAPTER 6 CLOCK MODULATOR ...
Страница 210: ...182 CHAPTER 11 TIME BASE TIMER ...
Страница 218: ...190 CHAPTER 12 WATCHDOG TIMER ...
Страница 264: ...236 CHAPTER 14 16 BIT RELOAD TIMER WITH EVENT COUNT FUNCTION ...
Страница 274: ...246 CHAPTER 15 WATCH TIMER ...
Страница 306: ...278 CHAPTER 17 DTP EXTERNAL INTERRUPTS ...
Страница 338: ...310 CHAPTER 18 8 10 BIT A D CONVERTER ...
Страница 364: ...336 CHAPTER 19 UART0 UART1 ...
Страница 398: ...370 CHAPTER 20 UART2 UART3 Figure 20 5 2 ORE Set Timing Receive data RDRF ORE ...
Страница 432: ...404 CHAPTER 20 UART2 UART3 ...
Страница 482: ...454 CHAPTER 22 SERIAL I O ...
Страница 560: ...532 CHAPTER 24 STEPPING MOTOR CONTROLLER ...
Страница 582: ...554 CHAPTER 27 ROM MIRRORING MODULE ...
Страница 632: ...604 CHAPTER 29 EXAMPLES OF SERIAL PROGRAMMING CONNECTION ...
Страница 722: ...694 APPENDIX ...
Страница 723: ...695 INDEX The index follows on the next page This is listed in alphabetic order ...
Страница 740: ......