upd70f3422gj-gae-qs-ax Renesas Electronics Corporation., upd70f3422gj-gae-qs-ax Datasheet - Page 280
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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)
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Chapter 7
280
(immediately preceding
Internal address latch
Figure 7-6
Output address
address)
Note
Note
(2)
(3)
Page ROM address
16-bit data bus width
The page size or the number of continuously readable bits is 8 x 16 bit. To
provide 8 addresses, a 3-bit on-page address is required. Therefore, set
PRC.MA[6:3] = 0001
For a 16-bit data bus, bit A0 of the output address is not used.
16-Mbit page ROM (1 M × 16 bits), page size 8 x 16 bit
32-bit data bus width
The page size or the number of continuously readable bits is 2 x 32 bit. To
provide 2 addresses, a 1-bit on-page address is required. Therefore, set
PRC.MA[6:3] = 0000
For a 32-bit data bus, bits A0 and A1 of the output address are not used.
Preliminary User’s Manual U17566EE1V2UM00
A22
A22
A21
...
A20
A19
...
A19
A18
...
B
B
.
.
Comparison
Off-page address
A6
A7
A7
Bus and Memory Control (BCU, MEMC)
MA6
A5
A6
A6
0
MA5
A5
A5
A4
0
MA4
A4
A4
0
A3
MA3
A3
A3
A2
On-page address
1
A1
PRC register setting
A2
A1
A0
A0
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