Intel ECB-862 Manual De Usuario

30  ECB-862/862L User’s Manual 

 

 

RDATA# 

The read data input signal from the FDD. 

WD# 

Write data. This logic low open drain writes pre-compensation serial data to the selected FDD. 

An open drain output. 

WE# 

Write enable. An open drain output. 

MOA# 

Motor A On. When set to 0, this pin enables disk drive 0. This is an open drain output. 

MOB# 

Motor B On. When set to 0, this pin enables disk drive 1. This is an open drain output. 

DSA# 

Drive Select A. When set to 0, this pin enables disk drive A. This is an open drain output. 

DSB# 

Drive Select B. When set to 0, this pin enables disk drive B. This is an open drain output. 

SIDE1# 

This output signal selects side of the disk in the selected drive. 

DIR# 

Direction of the head step motor. An open drain output 

Logic 1 = outward motion 

Logic 0 = inward motion 

STEP# 

Step output pulses. This active low open drain output produces a pulse to move the head to 

another track. 

DRVDEN0#  This output indicates whether a low drive density (250/300kbps at low level) or a high drive 

density (500/1000kbps at high level) has been selected. 

TRAK0# 

Track 0. This Schmitt-triggered input from the disk drive is active low when the head is 

positioned over the outermost track. 

INDEX# 

This Schmitt-triggered input from the disk drive is active low when the head is positioned over 

the beginning of a track marked by an index hole. 

WP# 

Write protected. This active low Schmitt input from the disk drive indicates that the diskette is 

write-protected. 

DSKCHG# 

Diskette change. This signal is active low at power on and whenever the diskette is removed.

 

SIGNAL 

PIN 

GND 2 

PWRBTN

1 

 

SIGNAL 

PIN 

GND 2 

RSTIN 1