Sharp FO-4450 Service Manual page 83

LC24199B-WJ0-E (IC21) Terminal description (1/2)
PIN I/O Name
Ground
1 P VSS
— N.C
2 Not connect
3 I XCI1 CI detect signal
4 O ERLY0 Reserved for 200V
5 O GAINC0 Reserved for 200V
6 O DPMUTE0 Reserved for 200V
7 O CML0 CML relay control signal
8 O TXMUTE0 Mute control for TX signal
9 O DPON0 Active choke control
10 I XEXHS0 Hook detect signal for external telephone
11 I XCI0 CI detect signal
12 I PDATAM Print data form main
13 O CTBSYB Controller status busy
14 O CPRDYB Controller power ready
15 I ETBSYB Engine status busy
16 P VDD Power supply
17 P VSS Ground
18 I PRRDYB Printer ready
19 I EPRDYB Engine power ready
20 O PDATA Video data of printer
21 O PCURESB PCU reset signal
22 O PCLK Serial communication clock
23 I PSTS Status data from PCU
24 O PCMD Command data to PCU
25 I CTBSYPCLB Controller status busy in PCL mode
26 I CPRDYPCLB Controller power ready in PCL mode
27 O ETBSYPCLB Engine status busy in PCL mode
28 O PRRDYPCLB Printer ready in PCL mode
29 O EPRDYPCLB Engine power ready in PCL mode
30 I PDATAINPCL Video data from PCL
31 O PCLRESB PCL reset signal
32 O XNICACKP Acknowledge signal for NIC in PCL mode
33 I RXWP READ/WRITE signal from PC L
34 P VDD Power supply
35 P VSS Ground
36 I PCLKPCL Serial communication clock in PCL mode
37 O PSTSPCL Status data from PCU in PCL mode
38 I PCMDPCL Command data to PCL in PCL mode
39 O PACK Printing acknowledge signal
40 I PREQ Printing request signal
41 B DPOPCL0 GPO bus for PCL board
42 B DPOPCL1 GPO bus for PCL board
43 B DPOPCL2 GPO bus for PCL board
44 B DPOPCL3 GPO bus for PCL board
45 B DPOPCL4 GPO bus for PCL board
46 B DPOPCL5 GPO bus for PCL board
47 B DPOPCL6 GPO bus for PCL board
48 B DPOPCL7 GPO bus for PCL board
49 B DPOPCL8 GPO bus for PCL board
50 B DPOPCL9 GPO bus for PCL board
—
51 N.C Not connect
52 P VDD Power supply
Function PIN
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
8 5
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
5 – 9
I/O Name
P VSS Ground
—
N.C Not connect
B DPOPCL10 GPO bus for PCL board
B DPOPCL11 GPO bus for PCL board
B DPOPCL12 GPO bus for PCL board
B DPOPCL13 GPO bus for PCL board
B DPOPCL14 GPO bus for PCL board
B DPOPCL15 GPO bus for PCL board
I
DPAPCL0 Address bus for NIC board (PCL)
Address bus for NIC board (PCL)
I DPAPCL1
Address bus for NIC board (PCL)
I DPAPCL2
I Address bus for NIC board (PCL)
DPAPCL3
Address bus for NIC board (PCL)
I DPAPCL4
Address bus for NIC board (PCL)
I DPAPCL5
Address bus for NIC board (PCL)
I DPAPCL6
P VDD Power supply
P
VSS Ground
Address bus for NIC board (PCL)
I DPAPCL7
I Address bus for NIC board (PCL)
DPAPCL8
DPAPCL9 Address bus for NIC board (PCL)
I
I DPAPCL10 Address bus for NIC board (PCL)
DPAPCL11 Address bus for NIC board (PCL)
I
DPAPCL12 Address bus for NIC board (PCL)
I
I DPAPCL13 Address bus for NIC board (PCL)
I DPAPCL14 Address bus for NIC board (PCL)
I DPAPCL15 Address bus for NIC board (PCL)
I DPAPCL16 Address bus for NIC board (PCL)
I XCSNICP Chip select signal
B DPONIC0 DPO bus for NIC board
B DPONIC1 DPO bus for NIC board
B DPONIC2 DPO bus for NIC board
DPO bus for NIC board
B DPONIC3
B DPONIC4 DPO bus for NIC board
P VDD Power supply
P VSS Ground
DPO bus for NIC board
B DPONIC5
DPO bus for NIC board
B DPONIC6
B DPONIC7 DPO bus for NIC board
DPO bus for NIC board
B DPONIC8
B DPONIC9 DPO bus for NIC board
B DPONIC10 DPO bus for NIC board
DPO bus for NIC board
B DPONIC11
B DPONIC12 DPO Bus for NIC Board(*2)
B DPONIC13 DPO Bus for NIC Board(*2)
B DPONIC14 DPO Bus for NIC Board(*2)
B DPONIC15 DPO Bus for NIC Board(*2)
O NICRESB Reset for NIC
O RXWNIC R/W signal for NIC
O XNICACKH XACK to HOST
O XCSNIC Chip Select Signal for NIC
—
N.C Not connect
P VDD Power supply
FO-4450U/FO-CS1
Function