Rainbow-electronics W78C58 Bedienungsanleitung PDF herunterladen (Seite 4)

W78C58

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BLOCK DIAGRAM

P3.0

~

P3.7

P1.0

~

P1.7

ALU

Port 0

Latch

Port 1

Latch

Timer

1

Timer

0

Timer

2

Port

1

UART

XTAL1 PSENALE GNDVCCRSTXTAL2

Oscillator

Interrupt

PSW

32KB

ROM

Instruction

Decoder

&

Sequencer

Reset Block

Bus & Clock

Controller

SFR RAM

Address

Power control

256 bytes

RAM & SFR

Stack

Pointer

B

Addr. Reg.

Incrementor

PC

DPTR

Temp Reg.

T2T1

ACC

Port 3

Latch

Port 4

Latch

Port

3

Port 2

Latch

P4.0

~

P4.3

Port

4

Port

0

Port

2

P2.0

~

P2.7

P0.0

~

P0.7

INT2

INT3

Figure 2. Architecture of the W78C58

1 2 3 4 5 6 7 8 9 ... 15 16

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