upd70f3402 Renesas Electronics Corporation., upd70f3402 Datasheet - Page 81

• Manufacturer Part Number: upd70f3402
• Description: 32-/16-bit Single-chip Microcontroller With Can Interface
• Manufacturer: Renesas Electronics Corporation.

3.4.5 Memory areas
(1)
Internal ROM area
(a) Memory map
1 MB of addresses 0000000H to 00FFFFFH is reserved as the internal ROM area.
• µPD70F3402
128 KB are provided in the following addresses as physical internal ROM (flash memory).
In single-chip mode: Addresses 000000H to 01FFFFH
• µPD70F3403 and µPD70F3403A
256 KB are provided in the following addresses as physical internal ROM (flash memory).
In single-chip mode: Addresses 000000H to 03FFFFH
(b) Interrupt/exception table
The V850E/RS1 speeds up the interrupt response time by fixing handler addresses corresponding
to interrupts/exceptions.
A collection of these handler addresses is called an interrupt/exception table, which is mapped to
the internal ROM area. When an interrupt/exception is acknowledged, execution jumps to a han-
dler address and the program in the area starting from that address is executed.
Refer to Chapter 17 ”Interrupt/Exception Processing Function” on page 685 for a descrip-
tion of the interrupt/exception sources and corresponding addresses.
0002 0000H
0001 FFFFH
0000 0000H
00F FFFFH
Internal ROM area
Access-prohibited
µPD70F3402
User’s Manual U16702EE3V2UD00
(128 KB)
area
Figure 3-19: Internal ROM Area
Chapter 3 CPU Function
000F FFFFH
0004 0000H
0003 FFFFH
0000 0000H
µPD70F3403 and µPD70F3403A
Internal ROM area
Access-prohibited
(256 KB)
area
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