8406602XA View Datasheet(PDF) - Intersil

Part Name

Description

View to exact match

8406602XA

CMOS Programmable Peripheral Interface

Intersil 

82C55A

INTERRUPT

REQUEST

PC3 PA0

PA1

PA2

PA3

PA4

PA5

MODE 2 PA6

PA7

PC4

PC5

PC7

PC6

82C55A

PC2

PC1

PC0

D0

D1

D2

D3

FLOPPY DISK

CONTROLLER

D4

AND DRIVE

D5

D6

D7

DATA STB

ACK (IN)

DATA READY

ACK (OUT)

TRACK “0” SENSOR

SYNC READY

INDEX

PB0

PB1

PB2

MODE 0 PB3

(OUTPUT) PB4

PB5

PB6

PB7

ENGAGE HEAD

FORWARD/REV.

READ ENABLE

WRITE ENABLE

DISC SELECT

ENABLE CRC

TEST

BUSY LT

FIGURE 23. BASIC FLOPPY DISC INTERFACE

INTERRUPT

REQUEST

PC3 PA0

PA1

PA2

PA3

PA4

MODE 1 PA5

(INPUT) PA6

PA7

PC4

PC5

PC6

82C55A

PC0

MODE 0 PC1

(INPUT) PC2

R0

R1

R2

R3

B LEVEL

PAPER

R4

TAPE

R5 READER

R6

R7

STB

ACK

STOP/GO

MACHINE TOOL

START/STOP

LIMIT SENSOR (H/V)

OUT OF FLUID

PB0

PB1

PB2

MODE 0 PB3

(OUTPUT) PB4

PB5

PB6

PB7

CHANGE TOOL

LEFT/RIGHT

UP/DOWN

HOR. STEP STROBE

VERT. STEP STROBE

SLEW/STEP

FLUID ENABLE

EMERGENCY STOP

FIGURE 24. MACHINE TOOL CONTROLLER INTERFACE

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