Epson TM-T88II Series Manual de Instruções descarregar pdf (Página 59)

2-20 Mechanisms and Operation Rev. A

25 CLK CLK Not used. Open O TTL

26 GND GND GND terminal I (0V)

27 X1 X1 Crystal connection I ----

28 X2 X2 Crystal connection O ----

29 EA

EA GND direct connection I TTL

30 RESET

RESET CPU reset input; L: ON I ----

31 WDTOUT

WDTOUT Watchdog timer error detect; L: error O TTL

32 PAO Not used. Open O TTL

33 PA1 Not used. Open O TTL

34 PA2/TO1 Not used. Open O TTL

35 PA3 Not used. Open O TTL

36 PB0/INT4 Not used. Open I TTL

37 PB1 Not used. Open O TTL

38 PB2 Not used. Open O TTL

39 PB3 RPFCOM Receipt paper feed motor common power supply;

H: ON

OTTL

40 PB4/INT6 Not used. Open I TTL

41 PB5 AC_1 Auto cutter drive signal 1 O TTL

42 PB6 AC_2 Auto cutter drive signal 2 O TTL

43 PB7 AC_RST Auto cutter position detect (reset) I TTL

44 VCC VCC Main power supply terminal (+5V) I (+5V)

Data bus 3 state TTL

53 P10 RNE Receipt paper near end detect; H: paper out I TTL

54 P11 R_COVER Receipt printer cover open detect; L: close I TTL

55 P12 RCPT_FD_SW Receipt paper feed switch; L: ON I TTL

56 P13 DK_S Drawer open/close; L: open I TTL

57 P14 ROUT_LED Receipt roll paper out LED; L: ON O TTL

58 P15 PTLED_COM Receipt paper detect LED drive signal; L: ON O TTL

59 P16 RERR_LED Receipt printer error LED; L: ON O TTL

60 P17 HCTS HOST I/F HCTS O TTL

GND GND GND terminal I (0V)

CPU signal assignments and functions (continued)

No. Pin name Signal name Function I/O Level

1 2 ... 54 55 56 57 58 59 60 61 62 63 64 ... 153 154

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Epson TM-T88II Series Manual de Instruções Página 59