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HD6432633 Datasheet, PDF (155/1453 Pages) Renesas Technology Corp – Series of Microcomputers (MCUs: microcomputer units) | |||
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Bit 3 Bit 2 Bit 1 Bit 0
AE3 AE2 AE1 AE0 Description
0
0
0
0
A8âA23 address output disabled
(Initial value*)
1
A8 address output enabled; A9âA23 address output disabled
1
0
A8, A9 address output enabled; A10âA23 address output
disabled
1
A8âA10 address output enabled; A11âA23 address output
disabled
1
0
0
A8âA11 address output enabled; A12âA23 address output
disabled
1
A8âA12 address output enabled; A13âA23 address output
disabled
1
0
A8âA13 address output enabled; A14âA23 address output
disabled
1
A8âA14 address output enabled; A15âA23 address output
disabled
1
0
0
0
A8âA15 address output enabled; A16âA23 address output
disabled
1
A8âA16 address output enabled; A17âA23 address output
disabled
1
0
A8âA17 address output enabled; A18âA23 address output
disabled
1
A8âA18 address output enabled; A19âA23 address output
disabled
1
0
0
A8âA19 address output enabled; A20âA23 address output
disabled
1
A8âA20 address output enabled; A21âA23 address output
disabled
(Initial value*)
1
0
A8âA21 address output enabled; A22, A23 address output
disabled
1
A8âA23 address output enabled
Note: * In expanded mode with ROM, bits AE3 to AE0 are initialized to B'0000.
In ROMless expanded mode, bits AE3 to AE0 are initialized to B'1101.
Address pins A0 to A7 are made address outputs by setting the corresponding DDR bits to
1.
101
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