Sharp XE-A301 Service Manual page 8

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
PORT I/O
No. name
P00 88 I/O
P01 87 I/O D1
P02 86 I/O D2
P03 85 I/O D3
P04 84 I/O D4
P05 83 I/O D5
P06 82 I/O D6
P07 81 I/O D7
P10 80 O P10
P11 79 O P11
P12 78 O P12
P13 77 O P13
P14 76 O P14
P15 75 O P15
P16 74 O P16
P17 73 O P17
P20 72 O A0
P21 71 O A1
P22 70 O A2
P23 69 O A3
P24 68 O A4
P25 67 O A5
P26 66 O A6
P27 65 O A7
P30 63 O A8
P31 61 O A9
P32 60 O A10
P33 59 O A11
P34 58 O A12
P35 57 O A13
P36 56 O A14
P37 55 O A15
P40 54 O A16
P41 53 O A17
P42 52 O A18
P43 51 O A19
P44 50 O /CS0
P45 49 O /CS1
P46 48 O /CS2
P47 47 O /CS3
P50 46 O /WR
P51 45 O /BHE
P52 44 O /RD
P53 43 O BCLK
Signal Initial OFF
MODE
name value
D0 Out L
D1 Out L
D2 Out L
D3 Out L
D4 Out L
D5 Out L
D6 Out L
D7 Out L
RAS L Out L RECEIPT
PAPER FEED A
RBS L Out L RECEIPT
PAPER FEED B
RCS L Out L RECEIPT
PAPER FEED C
RDS L Out L RECEIPT
PAPER FEED D
JAS L Out L JOURNAL
PAPER FEED A
JBS L Out L JOURNAL
PAPER FEED B
JCS L Out L JOURNAL
PAPER FEED C
JDS L Out L JOURNAL
PAPER FEED D
A0 Out L
A1 Out L
A2 Out L
A3 Out L
A4 Out L
A5 Out L
A6 Out L
A7 Out L
A8 Out L
A9 Out L
A10 Out L
A11 Out L
A12 Out L
A13 Out L
A14 Out L
A15 Out L
A16 Out L
A17 Out L
A18 Out L
A19 Out L
/CS0 Out H
/CS1 Out L
/CS2 Out H
/CS3 Out L
/WR Out L
(NU) Out L
/RD Out L
BCLK Out L
PIN
Function PORT I/O
No.
P54 42
P55 41
P56 40
P57 39
P60 38
P61 37
P62 36
P63 35
P64 34
P65 33
P66 32
P67 31
P70 30
P71 29
P72 28
P73 27
P74 26
P75 25
P76 24
P77 23
P80 22
P81 21
P82 20
P83 19
P84 18
P85 17
P86 11
P87 10
P90 7
P91 6
P92 5
P93 4
P94 3
P95 2
P96 1
P97 100
P100 97
P101 95
P102 94
P103 93
P104 92
P105 91
P106 90
P107 89
XE-A301V HARDWARE DESCRIPTION
– 7 –
Pin Signal Initial
name name value
O /HLDA (NU)
I /HOLD /HOLD
O ALE (NU)
I /RDY /RDY
O P60 DR1
O CLK0 FSCK (NU)
I RXD0 FRD (NU)
O TXD0 FSD (NU)
O /RTS1 /RS
O P65 /FRES (NU)
I RXD1 RD
O TXD1 SD
O TXD2 SO
I RXD2 SI
O CLK2 PCLK
O P73 DR2
O P74 /ER
I P75 /CD
I P76 /CS
I P77 /DR
O P80 BUZZER
O P81 VHCOM
I /INT0 POFF
I /INT1 /FRDY (NU)
O P84 /BUSY (NU)
I /NMI /NMI (NU)
O XCOUT XCOUT
I XCIN XCIN
I P90 MODE
I P91 MSENS
O P92 BA1
O P93 BA0
O P94 DATA /CE
O P95 BLON
O P96 LCDON
I P97 IPLON
I AN0 TM
I AN1 VPTEST
I AN2 VREF
O AN3 /STRB1
O AN4 /STRB2
O P105 /STRB3
O P106 /STRB4
O P107 LATCH
OFF
Function
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