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| HD404328 Datasheet, PDF (77/96 Pages) Hitachi Semiconductor – 4 BIT SINGLE CHIP MICROCOMPUTER | |||
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HD404328 Series
Instruction
[P]
Opcode
p3 p2 p1 p0
B register
Accumulator
00
B3 B2 B1 B0 A3 A2 A1 A0
Referenced ROM address RA13 RA12 RA11 RA10 RA 9 RA 8 RA 7 RA 6 RA 5 RA 4 RA 3 RA 2 RA 1 RA0
Address Specification
ROM data RO9 RO8 RO7 RO6 RO5 RO4 RO3 RO2 RO1 RO0
Accumulator, B register B3 B2 B1 B0 A3 A2 A1 A0 If RO8 = 1
ROM data RO9 RO8 RO7 RO6 RO5 RO4 RO3 RO2 RO1 RO0
Output registers R0, R1 R13 R12 R11 R10 R03 R02 R01 R0 0 If RO9 = 1
Pattern Output
Figure 46 P Instruction
256(n â 1) + 255
BR AAA 256n
AAA
NOP
BBB
BR AAA 256n + 254
BR BBB 256n + 255
256(n + 1)
NOP
Figure 47 Branching when Branch Destination is on a Page Boundary
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