Compaq LTE Elite Maintenance And Service Manual page 324

56 Ground
57 DMA Request 5
58 DMA Request 3
59 DMA Request 2
60 Ground
61 DMA Request 0
62 DMA Acknowledge 7 *
63 DMA Acknowledge 6 *
64 Ground
65 DMA Acknowledge 5 *
66 DMA Acknowledge 3 *
67 Expansion Base Present
68 Reserved
69 Ground
70 Reserved
71 Diskette Write Protect *
72 Diskette Write Data *
73 Ground
74 Diskette Step *
75 Diskette Track 0 *
76 Reset
77 Ground
78 System Data Bit 15
79 System Data Bit 14
80 System Data Bit 13
81 Ground
82 System Data Bit 12
83 System Data Bit 11
84 System Data Bit 10
85 Ground
86 System Data Bit 9
87 System Data Bit 8
88 System Data Bit 7
89 System Data Bit 6
90 Ground
91 System Data Bit 5
92 System Data Bit 4
93 System Data Bit 3
94 Ground
95 System Data Bit 2
96 System Data Bit 1
97 System Data Bit 0
98 Ground
99 DMA Terminal Count
---------------------------------------------------------------------------
* Active low
===========================================================================
IMPORTANT: There are differences between the pin-outs for the 198-pin
external options connector on the Compaq LTE Elite and the
Compaq SmartStation.
155 Unlatched Address Bit 19
156 Unlatched Address Bit 20
157 Unlatched Address Bit 21
158 Ground
159 Unlatched Address Bit 22
160 Unlatched Address Bit 23
161 System Address Bit 0
162 Ground
163 System Address Bit 1
164 System Address Bit 2
165 System Address Bit 3
166 Diskette Drive Select *
167 Diskette Low Density *
168 High Density
169 External Diskette Connected *
170 Tape Select *
171 Ground
172 Diskette Motor *
173 16-Bit I/O Cycle *
174 Low Memory *
175 Ground
176 Memory Read Control *
177 Memory Write Control *
178 16-Bit Memory Cycle *
179 Ground
180 Bus Master Grab *
181 Byte High Enable *
182 Refresh *
183 Ground
184 Interrupt Request 15
185 Interrupt Request 14
186 Interrupt Request 12
187 Ground
188 Interrupt Request 11
189 Interrupt Request 10
190 Interrupt Request 9
191 Interrupt Request 7
192 Ground
193 Interrupt Request 6
194 Interrupt Request 5
195 Interrupt Request 4
196 Reserved
197 Interrupt Request 3
198 Sense Computer Present