Sharp XE-A212, Service Manual

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XE-A212V HARDWARE DESCRIPTION
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4. CPU
• M16C/64A Group: M30620SAFP
• Processor mode = Microprocessor mode
• Internal reserve area, without expansion
• Multi function 16-bit Timer: Output system 5 lines + input system 6 lines
• Serial I/O:
M16C/64A PORT MEMORY SPACE: NORMAL MODE
PROCESSOR MODE: MICRO PROCESSOR MODE
It is used by (SEPARATE BUS 8bit Width)
PORT
PIN
No.
I/O
Pin
name
Signal
name
Initial
value OFF
MODE
Function PORT
PIN
No.
I/O
Pin
name
Signal
name
Initial
value OFF
MODE
Function
P00 88 I/O D0 D0 Out L P54 42 O /HLDA (NU) Out L
P01 87 I/O D1 D1 Out L P55 41 I /HOLD /HOLD In
P02 86 I/O D2 D2 Out L P56 40 O ALE (NU) Out L
P03 85 I/O D3 D3 Out L P57 39 I /RDY /RDY In
P04 84 I/O D4 D4 Out L P60 38 O /RTS0 /RS2 H In RS-232 /RS2
P05 83 I/O D5 D5 Out L P61 37 O CLK0 N.U. (FSCK) L Out L FMC DSCK
P06 82 I/O D6 D6 Out L P62 36 I RXD0 RD2 In RS-232 RD2
P07 81 I/O D7 D7 Out L P63 35 O TXD0 SD2 L Out L RS-232 SD2
P10 80 O P10 /PLCS H Out L
Pop up LCD
Chip Select
P64 34 O /RTS1 /RS1 H Out L RS-232 /RS1
P11 79 O P11 /PLRD H Out L Pop up LCD
Read clock
P65 33 I P65 IPL ON In IPL ON Signal
P12 78 O P12 /PLWR H Out L
Pop up LCD
Write clock
P66 32 I RXD1 RD1 In RS-232 RD1
P13 77 O P13 PLDATA L Out L
Pop up LCD
serial DATA
P67 31 O TXD1 SD1 H Out L RS-232 SD1
P14 76 O P14 IN1 L Out L Paper feed
motor (IN1)
P70 30 O TXD2 DAT L Out L PRINTER DATA OUT
P15 75 O P15 IN2 L Out L
Paper feed
motor (IN2)
P71 29 I RXD2 N.U. (BUSY) In PRINTER DATA IN
P16 74 O P16 ENA1 L Out L Paper feed
motor (ENA1) P72 28 O CLK2 PCLK L Out L PRINTER CLOCK
P17 73 O P17 ENA2 L Out L Paper feed
motor (ENA2) P73 27 O P73 DRAWER 1 L Out L DRAWER DRIVE SIGNAL
P20 72 O A0 A0 Out L P74 26 O P74 /ER1 H Out L RS-232 /ER1
P21 71 O A1 A1 Out L P75 25 I P75 /CD1 In RS-232 /CD1
P22 70 O A2 A2 Out L P76 24 I P76 /CS1 In RS-232 /CS1
P23 69 O A3 A3 Out L P77 23 I P77 /DR1 In RS-232 /DR1
P24 68 O A4 A4 Out L P80 22 O P80 BUZZER L Out L
P25 67 O A5 A5 Out L P81 21 O P81 MOTOR L In
Printer winding motor
P26 66 O A6 A6 Out L P82 20 I /INT0 /POFF In Power interruption
P27 65 O A7 A7 Out L P83 19 O /INT1 /WP H Out L FROM /WP
P30 63 O A8 A8 Out L P84 18 O P84 /STB2 H In PRINTER /STB2
P31 61 O A9 A9 Out L P85 17 I /NMI (NU) In
P32 60 O A10 A10 Out L P86 11 O XCOUT XCOUT 32.768kHz
P33 59 O A11 A11 Out L P87 10 I XCIN XCIN 32.768kHz
P34 58 O A12 A12 Out L P90 7 I P90 MDR In MODE KEY SENSE
P35 57 O A13 A13 Out L P91 6 I P91 MSENS In MISCELLANEOUS SENSE
P36 56 O A14 A14 Out L P92 5 O P92 BR1 L Out L BANK signal1
P37 55 O A15 A15 Out L P93 4 O P93 BR0 L Out L BANK signal0
P40 54 O A16 A16 Out L P94 3 O P94 /LDCS H Out L LCD DATA LATCH signal
P41 53 O A17 A17 Out L P95 2 O P95 BLON L Out L BACK LIGHT ON
P42 52 O A18 A18 Out L P96 1 O P96 LCDON L Out L LCD POWER ON
P43 51 O A19 A19 Out L P97 100 O P97 BR2 L Out L BANK singal2
P44 50 O /CS0 /CS0 Out H P100 97 I AN0 TM In HEAD temperature monitor
P45 49 O /CS1 /CS1 Out H P101 95 I AN1 VPTEST In HEAD voltage monitor
P46 48 O /CS2 /CS2 Out H P102 94 I AN2 VREF In Referance voltage
P47 47 O /CS3 /CS3 Out L External I/O
Chip Select
P103 93 I AN3 VBAT In VBAT (Battery voltage)
P50 46 O /WR /WR Out L P104 92 O AN4 /ER2 H In RS-232 /ER2
P51 45 O /BHE (NU) Out L P105 91 O P105 VPON L Out L PRINTER HEAD POWER
P52 44 O /RD /RD Out L P106 90 O P106 /LAT H In PRINTER DATA LATCH
P53 43 O BCLK BCLK Out L P107 89 O P107 /STB1 H In PRINTER /STB1