Input Control Lines; Drive Motor Enable (Nmotoron); Side Select N Side Select) - Tandon TM-100-1 Operating And Service Manual

3.3.1 Input Control Lines
TABLE 3-2
INTERFACE CONNECTOR PIN ASSIGNMENTS, J1 /P1
CONTROLLER-TO-DISK DRIVE
Ground Signal Mnemonic Description
1
2
Connector Clamp
3 4 Spare
5 6
Select 3 (NDS3)
9 10 Select 0 (NDS0)
11 12 Select 1 (NDS1)
13 14 Select 2 (NDS2)
15 16 Drive Motor Enable (NMOTORON)
17 18 Direction (DIR)
19 20 Step (N STEP)
21
22 Write Data
(N WRITE DATA)
23 24 Write Gate (N WRITE ENABLE)
31 32 Side Select (N SIDE SELECT)
33
34 Connector Clamp
DISK DRIVE-TO-CONTROLLER
Ground Signal Mnemonic Description
7
8 Index
(N INDEX / SECTOR)
25 26 Track 00 (NTRK00)
27 28 Write Protect
(N WRITE PROTECT)
29
30
Read Data (N READ DAT A)
3-4