Expansion Socket; Disc Drive 2 Socket - AMSTRAD cpc 6128 User Instruction

Expansion Socket
VIEWED FROM REAR
49 47 45 43 41 39 37 35 33 31 29 27 25 23 21 19 17 15 13 11 9 7 5 3
==============c==========
50 48 46 44 42 40 38 36 34 32 30 28 26 24 22 20 18 16 14 12 10 8 6
PIN 1 SOUND PIN 18
AO
PIN 35
INT
PIN 2 GND PIN 19
D7
PIN 36 NMI
PIN
3 A15 PIN 20 D6 PIN 37
BUSR2
PIN 4 A14 PIN 21
D5
PIN 38
BUSAK
PIN
5 A13 PIN 22
D4
PIN 39
READY
PIN 6 A12
PIN 23 D3 PIN 40 BUS RESET
PIN 7 All PIN 24
D2
PIN 41
RESET
PIN 8
Al0 PIN 25 Dl PIN 42 ROM EN
PIN 9 A9 PIN 26
DO PIN 43 ROMDIS
PIN 10
A8 PIN 27
+
5v
PIN
44 RAMRD
PIN 11 A7 PIN 28
MREO PIN 45
RAMDIS
PIN 12 A6 PIN 29 M1
PIN 46 CURSOR
PIN 13
A5
PIN 30
RFSH
PIN 47 L. PEN
PIN 14 A4 PIN 31 IORO
PIN 48 EXP
PIN 15 A3
PIN 32
RD
PIN 49 GND
PIN 16 A2
PIN 33 WR
PIN 50
</J
PIN 17 Al
PIN 34
HALT
Disc Drive 2 Socket
VIEWED FROM REAR
=d===============
3 5 7 9 " D
~ V ~ ~
n
~
v
~ ~ ~
- -
PIN1 READY PIN18 GND
PIN2 GND PIN19 MOTOR ON
PIN3 SIDE 1 SELECT PIN20 GND
PIN4 GND PIN21
N/C
PIN5 READ DATA PIN 22
GND
PIN6 GND PIN23 DRIVE SELECT 1
PIN7 WRITE PROTECT PIN 24
GND
PIN8 GND PIN25
N/C
PIN9 TRACKO PIN26
GND
PIN10 GND PIN27 INDEX
PIN11 WRITE GATE PIN28 GND
PIN12 GND PIN 29
N/C
PIN13
WRITE DATA
PIN30 GND
PIN14 GND PIN31
N/C
PIN15 STEP
PIN32
GND
PIN16 GND PIN 33
N/C
PIN 17 DIRECTION SELECT PIN34
GND
Chapter 7 Page 40 For your reference ....