Sam4s ER-5100? SERIES, Service Manual, Page: 64 / 80

SAM4S ER-5100 SERIES 11-1
11 ASIC SCR60K Pin Assignments
Pin No. Name Description Pin No. Name Description
1 RD Read 51 INT1 CN9 #3 (Timing Sihnal)
2 RTC Real Time clock 52 PR1 CN8 #4 (Ayto Cutter)
3 RAM2 Chip Select 53 PR2 CN8 #8 (Motor)
4 RAM1 Chip select 54 PR3 CN8 #3 (Stamp)
5 P2 A16 (for 1M RAM) 55 PR4 CN8 #2 (Receipt Feed)
6 P4 RAM/CS 56 PR5 CN8 #1 (Journal Feed)
7 P3 A16 (for 1M ROM) 57 P8_1 CN13 #30 (Fiscal Reset), IC3 #4
8 A15 Address Bus 58 W1 NE555 Timer Trigger
9 A14 Address Bus 59 W3 CN5 (Drawer)
10 A12 Address Bus 60 W4 CN4 (Drawer)
11 A13 Address Bus 61 HD9 CN7 #12 (Head)
12 A7 Address Bus 62 HD8 CN7 #11
13 A8 Address Bus 63 HD7 CN7 #10
14 A9 Address Bus 64 HD6 CN7 #9
15 VDD1 +5V 65 VDD9 +5V
16 A9 Address Bus 66 RAM1_1 Open
17 GND3 0V (ground) 67 GND12 0V (Ground)
18 A5 Address Bus 68 HD5 CN7 #8
19 A11 Address Bus 69 HD4 CN7 #4
20 A4 Address Bus 70 HD3 CN7 #3
21 PSEN ROM/CS 71 HD2 CN7 #2
22 A3 Address Bus 72 HD1 CN7 #1
23 A10 Address Bus 73 XTAL1 Crystal 22.1184 MHz
24 A2 Address Bus 74 XTAL2 Crystal 22.1184 MHz
25 ALE Address Latch Enable 75 R6 CN2 (Compulsory)
26 A1 Address Bus 76 R7 CN3 (Compulsory)
27 D7 Data Bus 77 R8 CN21 (All Clear)
28 A0 Address Bus 78 R3 Option Board
29 D6 Data Bus 79 R5 Buzzer
30 D0 Data Bus 80 RESET System Reset
31 D5 Data Bus 81 PWRFAIL Power fail
32 D1 Data Bus 82 R4 Display Disconnection Check
33 D4 Data Bus 83 P6 Display Clock
34 D2 Data Bus 84 P7 Display Latch Enable
35 D3 Data Bus 85 P8_1 Display Data in