Common Connectors

Table 4-2. Debug Connector (Continued)

171

L2TOE

GND

DRVMOD0

172

 

 

 

 

 

173

L2TWE

 

DRVMOD1 (N/C

174

 

 

 

 

 

175

L2TV

 

NAPRUN (N/C

176

 

 

 

 

 

177

L2PRSNT1

 

QREQ

178

 

 

 

 

 

179

SRESET

 

QACK

180

 

 

 

 

 

181

HRESET

 

CPUTDO

182

 

 

 

 

 

183

GND

 

CPUTDI

184

 

 

 

 

 

185

CPUCLK1

 

CPUTCK

186

 

 

 

 

 

187

CPUCLK2

 

CPUTMS

188

 

 

 

 

 

189

CPUCLK3

 

CPUTRST

190

 

 

 

 

 

4

Floppy/LED Connector J4

A 50-pin high-density connector (J4 on the base board) supplies the interface between the base board and an optional external floppy disk drive. In addition to the disk drive control signals, a set of 16 lines is available to drive an external LED array. The pin assignments are listed in the following table.

Table 4-3. Floppy/LED Connector

1

+5VF

+5VF

2

 

 

 

 

3

LEDDISP0

LEDDISP1

4

 

 

 

 

5

LEDDISP2

LEDDISP3

6

 

 

 

 

7

LEDDISP4

LEDDISP5

8

 

 

 

 

9

LEDDISP6

LEDDISP7

10

 

 

 

 

11

LEDDISP8

LEDDISP9

12

 

 

 

 

13

LEDDISP10

LEDDISP11

14

 

 

 

 

15

LEDDISP12

LEDDISP13

16

 

 

 

 

17

LEDDISP14

LEDDISP15

18

 

 

 

 

19

LEDBLNK

F_DENSEL

20

 

 

 

 

http://www.motorola.com/computer/literature

4-7

Page 121
Image 121
Motorola MVME2600 manual Floppy/LED Connector J4