Siemens EF 88H Series Manual de usuario descargar pdf (Pagina 25)

Memory Organization

C501

Semiconductor Group 3-4

Table 3-2

Special Function Registers - Functional Blocks

Block Symbol Name Address Contents after

Reset

CPU ACC

DPH

DPL

PSW

Accumulator

B-Register

Data Pointer, High Byte

Data Pointer, Low Byte

Program Status Word Register

Stack Pointer

Interrupt

System

Interrupt Enable Register

Interrupt Priority Register

0X000000

XX000000

Ports P0

Port 0

Port 1

Port 2

Port 3

Serial

Channel

PCON

SBUF

SCON

Power Control Register

Serial Channel Buffer Register

Serial Channel Control Register

0XXX0000

Timer 0 /

Timer 1

TCON

TH0

TH1

TL0

TL1

TMOD

Timer 0/1 Control Register

Timer 0, High Byte

Timer 1, High Byte

Timer 0, Low Byte

Timer 1, Low Byte

Timer Mode Register

Timer 2 T2CON

T2MOD

RC2H

RC2L

TH2

TL2

Timer 2 Control Register

Timer 2 Mode Register

Timer 2 Reload/Capture Register, High Byte

Timer 2 Reload/Capture Register, Low Byt

Timer 2 High Byte

Timer 2 Low Byte

XXXXXXX0

Pow. Sav.

Modes

PCON

Power Control Register 87

0XXX0000

1) Bit-addressable special function registers

2) This special function register is listed repeatedly since some bits of it also belong to other functional blocks.

3) “X“ means that the value is undefined and the location is reserved

1 2 ... 20 21 22 23 24 25 26 27 28 29 30 ... 120 121

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Siemens EF 88H Series Manual de usuario Pagina 25

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