Sharp XE-A402 Service Manual page 8

PC-UM10M
4. I/O
M16C/24 PORT MEMORY SPACE: NORMAL MODE
PROCESSOR MODE: MICRO PROCESSOR MODE
It is used by (SEPARATE BUS 8bit Width)
PIN Pin Signal
PORT I/O
No. name name
P00 88 I/O D0
P01 87 I/O D1 D1
P02 86 I/O D2 D2
P03 85 I/O D3 D3
P04 84 I/O D4 D4
P05 83 I/O D5 D5
P06 82 I/O D6 D6
P07 81 I/O D7 D7
P10 80 O P10 RAS
P11 79 O P11 RBS
P12 78 O P12 RCS
P13 77 O P13 RDS
P14 76 O P14 JAS
P15 75 O P15 JBS
P16 74 O P16 JCS
P17 73 O P17 JDS
P20 72 O A0 A0
P21 71 O A1 A1
P22 70 O A2 A2
P23 69 O A3 A3
P24 68 O A4 A4
P25 67 O A5 A5
P26 66 O A6 A6
P27 65 O A7 A7
P30 63 O A8 A8
P31 61 O A9 A9
P32 60 O A10 A10
P33 59 O A11 A11
P34 58 O A12 A12
P35 57 O A13 A13
P36 56 O A14 A14
P37 55 O A15 A15
P40 54 O A16 A16
P41 53 O A17 A17
P42 52 O A18 A18
P43 51 O A19 A19
P44 50 O /CS0 /CS0
P45 49 O /CS1 /CS1
P46 48 O /CS2 /CS2
P47 47 O /CS3 /CS3
P50 46 O /WR /WR
P51 45 O /BHE (NU)
P52 44 O /RD /RD
P53 43 O BCLK BCLK
Initial OFF
Function
value MODE
Out L
Out L
Out L
Out L
Out L
Out L
Out L
Out L
L Out L RECEIPT PAPER
FEED A
L Out L RECEIPT PAPER
FEED B
L Out L RECEIPT PAPER
FEED C
L Out L RECEIPT PAPER
FEED D
L Out L JOURNAL PAPER
FEED A
L Out L JOURNAL PAPER
FEED B
L Out L JOURNAL PAPER
FEED C
L Out L JOURNAL PAPER
FEED D
Out L
Out L
Out L
Out L
Out L
Out L
Out L
Out L
Out L
Out L
Out L
Out L
Out L
Out L
Out L
Out L
Out L
Out L
Out L
Out L
Out H
Out L
Out H
Out L
Out L
Out L
Out L
Out L
XE-A402 HARDWARE DESCRIPTION
– 7 –
PIN Pin Signal
PORT I/O
No. name name
P54 42 O /HLDA (NU)
P55 41 I /HOLD /HOLD
P56 40 O ALE (NU)
P57 39 I /RDY /RDY
P60 38 O P60 DR1
P61 37 O CLK0 FSCK(NU)
P62 36 I RXD0 FRD(NU)
P63 35 O TXD0 FSD (NU)
P64 34 O /RTS1 /RS
P65 33 O P65 /FRES(NU)
P66 32 I RXD1 RD
P67 31 O TXD1 SD
P70 30 O TXD2 SO
P71 29 I RXD2 SI
P72 28 O CLK2 PCLK
P73 27 O P73 DR2
P74 26 O P74 /ER
P75 25 I P75 /CD
P76 24 I P76 /CS
P77 23 I P77 /DR
P80 22 O P80 BUZZER
P81 21 O P81 VHCOM
P82 20 I /INT0 POFF
P83 19 I /INT1 /FRDY(NU)
P84 18 O P84 /BUSY(NU)
P85 17 I /NMI /NMI(NU)
P86 11 O XCOUT XCOUT
P87 10 I XCIN XCIN
P90 7 I P90 MODE
P91 6 I P91 MSENS
P92 5 O P92 BA1
P93 4 O P93 BA0
P94 3 O P94 DATA /CE
P95 2 O P95 BLON
P96 1 O P96 LCDON
P97 100 I P97 IPLON
P100 97 I AN0 TM
P101 95 I AN1 VPTEST
P102 94 I AN2 VREF
P103 93 AN3 /STRB1
O
P104 92 O AN4 /STRB2
P105 91 O P105 /STRB3
P106 90 O P106 /STRB4
P107 89 O P107 LATCH
Initial OFF
Function
value MODE
Out L
In
Out L
In
L Out L DRAWER 1 DRIVE
SIGNAL
L Out L FMC FSCK
L Out L FMC FRD
L Out L FMC FSD
H Out L RS-232 /RS
L Out L FMC /FRES
In RS-232 RD
H Out L RS-232 SD
L Out L PRINTER DATA
OUT
In PRINTER DATA IN
L Out L PRINTER CLOCK
L Out L DRAWER 2 DRIVE
SIGNAL
H Out L RS-232 /ER
In RS-232 /CD
In RS-232 /CS
In RS-232 /DR
L Out L
L In PRINTER HEAD
CONTROL
In
L Out L FMC /FRDY
L Out L FMC #BUSY
In
32.768kHz
32.768kHz
In MODE KEY SENSE
In MISCELLANEOUS
SENSE
L Out L BANK signal 1
L Out L BANK signal 0
L Out L LCD DATA LATCH
signal
L Out L BACK LIGHT ON
L Out L LCD POWER ON
In IPL ON signal
In HEAD temperature
monitor
In HEAD voltage
monitor
In Referance voltage
H In PRINTER STORE
SIGNAL 1
H In PRINTER STORE
SIGNAL 2
H In PRINTER STORE
SIGNAL 3
H In PRINTER STORE
SIGNAL 4
L In PRINTER LATCH
SIGNAL