upd70f3422gj-gae-qs-ax Renesas Electronics Corporation., upd70f3422gj-gae-qs-ax Datasheet - Page 120
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upd70f3422gj-gae-qs-ax
Manufacturer Part Number
upd70f3422gj-gae-qs-ax
Description
32-bit Single-chip Microcontroller
Manufacturer
Renesas Electronics Corporation.
Datasheet
1.UPD70F3422GJ-GAE-QS-AX.pdf
(930 pages)
- Current page: 120 of 930
- Download datasheet (14Mb)
Chapter 3
120
After reset
Table 3-12
(2)
Internal VDB RAM area
The internal VDB RAM consists of several separated RAM blocks. If a reset
occurs while writing to one RAM block, only the contents of that RAM block
may be corrupted. The contents of the other RAM blocks remain unaffected.
Table 3-12 summarizes the VDB (V850 Data Bus) RAM blocks compilation and
their address assignment.
Internal VDB RAM areas
a)
Note that the internal firmware, which is processed after reset, uses some
RAM (refer to “General reset performance“ on page 861).
Preliminary User’s Manual U17566EE1V2UM00
Device
µPD70(F)3420 6 KB
µPD703421
µPD70F3421
µPD70(F)3422 16 KB
µPD70F3423
µPD70F3424
µPD70F3425
µPD70F3426
µPD70F3427
The µPD70F3425’s 32 KB RAM area 03FF 0000
the subsequent area 03FF 8000
03FF F000
RAM mirror must not be used to access the RAM.
a
H
RAM size
12 KB
12 KB
20 KB
24 KB
32 KB
60 KB
to 03FF FFFF
Block
Number
0
1
0
1
2
0
1
0
1
0
1
2
0
1
2
0
1
0
1
2
3
H
is used to access the fixed peripheral I/O area, the
H
to 03FF FFFF
Size
4 KB
2 KB
4 KB
4 KB
4 KB
4 KB
8 KB
8 KB
8 KB
8 KB
8 KB
4 KB
8 KB
8 KB
8 KB
16 KB
16 KB
16 KB
16 KB
16 KB
12 KB
H
H
Address
03FF 0000
03FF 1000
03FF 0000
03FF 1000
03FF 2000
03FF 0000
03FF 1000
03FF 0000
03FF 2000
03FF 0000
03FF 2000
03FF 4000
03FF 0000
03FF 2000
03FF 4000
03FF 0000
03FF 4000
03FF 0000
03FF 4000
03FF 8000
03FF C000
. Since the upper 4 KB
to 03FF 7FFF
CPU System Functions
H
H
H
H
H
H
H
H
H
H
H
H
H
H
H
H
H
H
H
H
H
– 03FF 0FFF
– 03FF 17FF
– 03FF 0FFF
– 03FF 1FFF
– 03FF 2FFF
– 03FF 0FFF
– 03FF 2FFF
– 03FF 1FFF
– 03FF 3FFF
– 03FF 1FFF
– 03FF 3FFF
– 03FF 4FFF
– 03FF 1FFF
– 03FF 3FFF
– 03FF 5FFF
– 03FF 3FFF
– 03FF 7FFF
– 03FF 3FFF
– 03FF 7FFF
– 03FF BFFF
– 03FF EFFF
H
is mirrored to
H
H
H
H
H
H
H
H
H
H
H
H
H
H
H
H
H
H
H
H
H
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