Sharp FO 4400 - B/W Laser - All-in-One Service Manual page 96

FO-4400U
FO-CS1
LC272D0BT-WA6 (IC6) Terminal description (1/2)
PIN I/O Name
P
1 VSS
2 B D7
3 B D6
4 B D5
5 B D4
6 B D3
7 B D2
8 B D1
9 B D0
10 I
XCS0
11 I XCS4
12 O XDACK0
13 O XDACK1
14 O XDRAK0
15 O XDRAK1
16 I XDREQ0
17 I XDREQ1
18 P VDD
19 P VSS
20 O XFLCS
21 I XFLSHINTA
22 I XFLSHINTB
23 O XINT0
24 O XINT1
25 O XINT2
26 O XINT3
27 O XPGMCS
28 O XWROUT
29 O XRDOUT
30 O XWAIT
31 I XBUSYDP
32 I XMDMINT1
33 I XMDMINT0
34 O XMDMCS1
35 O XMDMCS0
36 P VDD
37 P VSS
38 I XINPRT
39 O XOUTPRT
40 P VSS
41 I TODB
42 I HSYNC
43 O PDATA
44 I XJBGINT1
45 I XJBGINT0
46 I XSGAINT
47 I XSBGA
48 I JBGDREQ00
49 I JBGDREQ01
50 I JBGDREQ10
51 I JBGDREQ11
52 O XJBGACK1
53 O XJBGACK0
54 P VDD
Function
Ground
Data bus
Data bus
Data bus
Data bus
Data bus
Data bus
Data bus
Data bus
Chip select (Erea 0)
Chip select (Erea 4)
DMA acknowledge (Ch0)
DMA acknowledge (Ch1)
DMA request acknowledge (Ch0)
DMA request acknowledge (Ch1)
DMA request (Ch0)
DMA request (Ch1)
Power supply
Ground
Chip select (Flash memory)
Interrupt request of flash memory
Interrupt request of flash memory
Interrupt request signal
Interrupt request signal
Interrupt request signal
Interrupt request signal
Chip select (Program memory)
Write strobe signal
Read strobe signal
Wait request signal
Busy signal of Dual port RAM
Interrupt request from modem chip 1
Interrupt request from modem chip 0
Chip select (Modem Chip 1)
Chip select (Modem Chip 0)
Power supply
Ground
Print block clock in
Print block clock out
Ground
Top of data
Synchronous signal of horizontal anxious
Print data
Reserved
Reserved
Interrupt request from modem chip 0
Chip select (Sub Gate array)
Reserved
Reserved
Reserved
Reserved
Reserved
Reserved
Power supply
PIN I/O Name
55 P VSS
56 O XNICACK
57 I XNICINT
58 O XNICCS
59 O XJBG1
60 O XJBG0
61 B MAD0
62 B MAD1
63 P VDD
64 P VSS
65 B MAD2
66 B MAD3
67 B MAD4
68 B MAD5
69 B MAD6
70 B MAD7
71 B MAD8
72
P VDD
73 P VSS
74 B MAD9
75 B MAD10
76 B MAD11
77 B MAD12
78 B MAD13
79 B MAD14
80 B MAD15
81 P VDD
82 P VSS
83 O SDCLK
84 O DQMUL
O
85 CKE
86 O CASB
87 O RASB
88 O DWEB
89 O XCSDRM0
90 P VDD
91 P VSS
92 O MA0
93 O MA1
94 O MA2
95 O MA3
96 O MA4
97 O MA5
98 O MA6
99 P VDD
100 P VSS
101 O MA7
102 O MA8
103 O MA9
104 O MA10
105 O MA11
106 O MA12
107 O MA13
108 P VDD
5 – 6
Function
Ground
Acknowledge signal for NIC
Interrupt request from NIC board
Chip select (NIC Board)
Reserved
Reserved
Data bus of page memory
Data bus of page memory
Power supply
Ground
Data bus of page memory
Data bus of page memory
Data bus of page memory
Data bus of page memory
Data bus of page memory
Data bus of page memory
Data bus of page memory
Power supply
Ground
Data bus of page memory
Data bus of page memory
Data bus of page memory
Data bus of page memory
Data bus of page memory
Data bus of page memory
Data bus of page memory
Power supply
Ground
Clock of page memory
Data mask of page memory
CK enable of page memory
CAS of page memory
RAS of page memory
Write strobe of page memory
Chip select of page memory
Power supply
Ground
Address bus of page memory
Address bus of page memory
Address bus of page memory
Address bus of page memory
Address bu s of page memory
Address bus of page memory
Address bus of page memory
Power supply
Ground
Address bus of page memory
Address bus of page memory
Address bus of page memory
Address bus of page memory
Address bus of page memory
Address bus of page memory
Address bus of page memory
Power supply