Barcrest MPU6 - REEL5 Control Board

62
4.24 REEL5 control board
The REEL5 control board, shown in Fig. 31, provides direct control of up to five reels, under
supervision of the MPU6 board. An 8-bit on-board processor (cpu) controls each reel
independently, receiving reel positioning requirements from the MPU6 board via the Barbus
serial data link and generating position demands via 8-bit parallel ports.
Each reel is controlled via three interfaces. The reel stepper motor is driven via a REEL
interface, a LAMP interface controls the lamps illuminating the reel symbols and an OPTO
interface receives a reel marker pulse enabling the cpu to determine the reel position at any
time. An additional STROBE interface can provide strobe signals which may be used by
certain games.
L
amp
Current
S
ense
Z86C62
SCM
RS485
11
WAY
2
5
V
Reg
1
2
V
5
V
Addr1
0V
34V
12V
Addr0
0V
BARBUS
0
1
Status
LED
Reset
CCT
3
Low
S
ide
Selects
3
7
Way
3
34 V
H
igh
Side
Drive
4
Low
Side
D
rives
7
W
ay
4
12V
1
2V
4
5
Way
5V
0
V
7
Way
3
3
4 V
High
Side
Drive
4
Low
Side
Drives
7
Way
4
12V
12V
4
5
Way
5V
12V
0V
7
Way
3
34 V
High
Side
Drive
4
Low
Side
Drives
7
Way
4
12V
12V
4
5
Way
5V
12V
0V
LAMP1
OPTO1
REEL1
REEL 1
REEL 2
REEL 5
M
otor
Type
Links
4
6
W
ay
STROBE
PORT
12V
5V
2
0V
Fig. 31. REEL5 control board block diagram