Renesas PCA7400 Manual de usuario Pagina 15

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MITSUBISHI MICROCOMPUTERS
M37271MF-XXXSP
M37271EF-XXXSP, M37271EFSP
SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER with CLOSED CAPTION DECODER
and ON-SCREEN DISPLAY CONTROLLER
14
Fig. 7. Internal state of processor status register and program counter at reset
b7
b0
b7
b0
1
Register
Processor status register (PS)
Bit allocation State immediately after reset
Program counter (PC
H
)
Program counter (PC
L
)
Contents of address FFFF
16
Contents of address FFFE
16
I ZCDBTVN???????
: Nothing is allocated
: “1” immediately after reset
: undefined immediately after reset
1
?
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