Oki OKIPAGE 14ex Maintenance Manual page 122

• OPTION Connector Pin Assignment
(To option RAM or RS232C board)
Pin No.
01
01 51
02
02 52
03
03 53
04
04 54
05
05 55
06
06 56
07
07 57
08
08 58
09
09 59
10
10 60
11
11 61
12
12 62
13
13 63
14
14 64
15
15 65
16
16 66
17
17 67
18
18 68
19
19 69
20
20 70
21
21 71
22
22 72
23
23 73
24
24 74
25
25 75
26
26 76
27
27 77
28
28 78
29
29 79
30
30 80
31
31 81
32
32 82
33
33 83
34
34 84
35
35 85
36
36 86
37
37 87
38
38 88
39
39 89
40
40 90
41
41 91
42
42 92
43
43 93
44
44 94
45
45 95
46
46 96
47
47 97
48
48 98
49
49 99
50
50 100
* O : Out
I : In
C : Common
41356901TH Rev.2
I/O* Signal Description
O A0 OR write enable
C 0V Logic ground
O A1 Address bit 1
O A2 Address bit 2
O RSDTR0-N RS232C Data terminal ready
O A3 Address bit 3
O A4 Address bit 4
C 0V Logic ground
O A5 Address bit 5
O A6 Address bit 6
O +5V Logic power supply
O A7 Address bit 7
O A8 Address bit 8
C 0V Logic ground
O A9 Address bit 9
O A10 Address bit 10
O +5V Logic power supply
O A11 Address bit 11
O A12 Address bit 12
C 0V logic ground
O A13 Address bit 13
O A14 Address bit 14
O +5V Logic power supply
O A15 Address bit 15
O A16 address bit 16
C 0V Logic ground
O A17 Address bit 17
O A18 Address bit 18
O +5V Logic power supply
O A19 Address bit 19
O A20 Address bit 20
C 0V Logic ground
O A21 Address bit 21
O A22 Address bit 22
O A23 Address bit 23
O 0V Logic ground
O 0V Logic ground
C 0V Logic ground
O RSRTS0-N RS232C request to send
O CS1-N ROM/SRAM select 1
O CS2-N ROM/SRAM select 2
O CS3-N ROM/SRAM select 3
I SCRREQ-P SCC send request
C 0V Logic ground
I SCSREQ-P SCC receive request
O IOS0-N I/O select 0
O IOS1-N I/O select 1
O RSTXD0-N RS232C send data
O -8V RS232C line voltage
I RSRXD0-P RS232C receive data
Pin No. I/O* Signal
51 I/O D16
52 I/O D0
53 I/O D17
54 I/O D1
58 I/O D18
56 I/O D2
57 I/O D19
58 I/O D3
59 I/O D20
60 I/O D4
61 I/O D21
62 I/O D5
63 I/O D22
64 I/O D6
65 I/O D23
66 I/O D7
67 I/O D24
68 I/O D8
69 I/O D25
70 I/O D9
71 I/O D26
72 I/O D10
73 I/O D27
74 I/O D11
75 I/O D28
76 I/O D12
77 I/O D29
78 I/O D13
79 I/O D30
80 I/O D14
81 I/O D31
82 I/O D15
83 O DRAS2-N
84 O DRAS3-N
85 O DRAS4-N
86 O DRAS5-N
87 O DCAS3-N
88 O DCAS2-N
89 O DCAS1-N
90 O DCAS0-N
91 O RD-N
92 O WR-N
93 I INT1-N
94 I INT2-N
95 O EEPRMCS1-P
96 O EEPRMCLK-P
97 C SSTXD-P
98 I DRDY-N
99 C +8V
100 O RESET-N
Description
Data bit 16
Data bit 0
Data bit 17
Data bit 1
Data bit 18
Data bit 2
Data bit 19
Data bit 3
Data bit 20
Data bit 4
Data bit 21
Data bit 5
Data bit 22
Data bit 6
Data bit 23
Data bit 7
Data bit 24
Data bit 8
Data bit 25
Data bit 9
Data bit 26
Data bit 10
Data bit 27
Data bit 11
Data bit 28
Data bit 12
Data bit 29
Data bit 13
Data bit 30
Data bit 14
Data bit 31
Data bit 15
DRAM select 2
DRAM select 3
DRAM select 2
DRAM select 5
DCAS3
DCAS2
DCAS1
DCAS0
RD-N
WR-N
Interrupt request 1
Interrupt request 2
EEPROM select
EEPROM clock
EEPROM data
Data read
RS232C line voltage
Reset signal
122 /