USBB17RX78K4-XXX NEC Electronics, USBB17RX78K4-XXX Datasheet - Page 13

• Manufacturer Part Number: USBB17RX78K4-XXX
• Description: 78K/4 series realtime OS
• Manufacturer: NEC Electronics

1.5 Memory Confuguration of RX78K/IV
[Large model]
0FFFFH. Because (1), (2), and (3) are relocatable objects, they can located in any area of memory in the above
range.
tables are created by the configurator).
[Small model]
0FFFFH. Because (1), (2), and (3) are relocatable objects, they can located in any area of memory in the above
range.
tables are created by the configurator).
4
The memory of the system using RX78K/IV consists of the following:
(1) Nucleus
(2) Reset routine for system initialization
(3) System call entry address storage table
(4) OS management area
(5) Initialization information table
(6) Object management control block
(7) User program
(1), (2), and (3) above are stored in the internal ROM or external memory space at addresses 0H through
(4), (5), and (6) are information tables that are referenced by the reset routine when it initializes the system (these
The user can locate these tables in any area.
Note: The area in which (4) and (6) can be located is within 64K bytes with the most significant byte fixed. The
(1), (2), and (3) above are stored in the internal ROM or external memory space at addresses 0H through
(4), (5), and (6) are information tables that are referenced by the reset routine when it initializes the system (these
Locate (4) and (6) within an 256-byte area at addresses 0F700H through 0F7FFH in the internal RAM area.
For the memory map, refer to the User’s Manual of the CPU you are using.
An example of memory configuration when the RX78K/IV is embedded with the
area is allocated starting from the address specified by the user.
Note
Note
CHAPTER 1
GENERAL
m
PD784026 is shown below.