NEC VERSA DOCKING STATION 4000 Manual page 131

EXPANSION PORT PIN ASSIGNMENTS (CONT'D)
Pin Signal
55 Mouse Clock
56 Mouse Data
57 Keyboard Clock
58 Keyboard Data
59 N.C.
60 +12 V sys
61 FD – TRACK0
62 +12 V sys
63 +12 V sys
64 +12 V sys
65 +12 V sys
66 +12 V sys
67 CRT – red
68 CRT – green
69 SA17
70 SA18
71 SA19
72 MEMCS16
73 Refresh
74 PR – Data Strobe
75 PR – ACK
76 PR – Busy
77 PR – PE
78 PR – Select
79 PR – Auto Feed
80 PR – Error
81 PR – Initialize
82 PR – Select In
83 FD – Head Select
B-10 Pin Assignments
Pin Signal
84 FD – Direction In
85 FD – Boot Select
86 FD – Low Density
87 FD – Write Enable
88 FD – Step
89 LA23
90 LA22
91 LA21
92 LA20
93 LA19
94 LA18
95 LA17
96 FD – Write Protect
97 FD – Disk Change
98 FD – Read Data
99 FD – Index
100 CRT – Blue
101 CRT – Hsync
102 SD8
103 SD9
104 SD10
105 SD11
106 SD12
107 SD13
108 SD14
109 SD15
110 Master
111 Serial – CD
112 Serial – TXD