Sharp AL-1611 Service Manual page 78

Pin No. Pin name Signal name
22 A14 A14
23 A15 A15
24 A16 A16
25 A17 A17
26 A18 A18
27 A19 A19
28 VSS
29 A20 A20
30 /IRQ5 /SPFCOVER
31 /IRQ6 /OCCOVER
32 /IRQ7 MHP
33 /IRQ3 /SPFPAPER
34 /IRQ2 /CPUSYNC
35 VSS
36 VSS
37 /IRQ1 /FW
38 /IRQ0 /LOOPINT
39 VCC
40 D0
41 D1
42 D2
43 D3
44 VSS
45 D4
46 D5
47 D6
48 D7
49 D8
50 D9
51 D10 D10
52 D11 D11
53 VSS
54 D12 D12
55 D13 D13
56 D14 D14
57 D15 D15
58 VCC
59 P30
60 TXD1 TXD1
61 P32 SDA
62 RXD1 RXD1
63 P34 SCL
64 P35 /FROMUP
65 VSS
66 /DREQ0 /DREQ0
67 VSS
(Pin descriptions) IN: Input pin OUT: Output pin BIDIR: Bi-directional pin ODN: Open drain output pin TR1: 3-state output pin POW: Power pin
I/O
OUT Address bus 14
OUT Address bus 15
OUT Address bus 16
OUT Address bus 17
OUT Address bus 18
OUT Address bus 19
POW Ground pin
OUT Address bus 20
IN Interruption request 5
IN Interruption request 6
IN Interruption request 7
IN Interruption request 3
IN Interruption request 2
POW Ground pin
POW Ground pin
IN Interruption request 1
IN Interruption request 0
POW Power pin
D0 BIDIR Data bus 0
D1 BIDIR Data bus 1
D2 BIDIR Data bus 2
D3 BIDIR Data bus 3
POW Ground pin
D4 BIDIR Data bus 4
D5 BIDIR Data bus 5
D6 BIDIR Data bus 6
D7 BIDIR Data bus 7
D8 BIDIR Data bus 8
D9 BIDIR Data bus 9
BIDIR Data bus 10
BIDIR Data bus 11
POW Ground pin
BIDIR Data bus 12
BIDIR Data bus 13
BIDIR Data bus 14
BIDIR Data bus 15
POW Power pin

OUT General port 30
OUT SCI channel 1 serial trans-
mission
ODN General port 32
IN SCI channel 1 serial recep-
tion
ODN General port 34
IN General port 35
POW Ground pin
IN DMAC channel 0 external
request
POW Ground pin
AL-1611/AL-1622 ELECTRICAL SECTION
Function Purpose
System bus
System bus
System bus
System bus
System bus
System bus
System bus
SPF cover sensor interrup-
tion
OC cover sensor interrup-
tion
Mirror home position sensor
interruption
S P F p a p e r p a s s s e n s o r
interruption
Horizontal sync signal inter-
ruption
Zero cross interruption
Loop interruption
System bus
System bus
System bus
System bus
System bus
System bus
System bus
System bus
System bus
System bus
System bus
System bus
System bus
System bus
System bus
System bus
(Not used)
Service connector
EEPROM control
Service connector
EEPROM control
Service connector
Mirror and SPF motor accel-
eration/reduction control
13 – 3
Descriptions
1: Cover close
0: Cover close
1: Home position
0: Paper presence
0: Effective
0: Effective
0: Effective
L: Level fixing output
UART serial output
12CBUS data line
UART input
12CBUS clock line
0: Service mode
0: Request effective