Sharp PC-G850VS - 11-Pin Interface Appendix; Signals and Pin-Out Overview

SHARP&PC-G850V(S)&&User&Manual&-&Appendix!A:!11-Pin!Interface&
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Appendix&A:&11-Pin&Interface&
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Signals&and&Pin-Out&
On the left side of the PC-G850V(S) there is an 11-pin interface intended for
communication with other devices. It is a multi-functional interface, hence it can operate
in different (sub-)modes. The actual mode is selected through operational commands or
menue items of the PC-G850V(S).
1. SIO / RS-232C-mode (e.g. OPEN“COM:“)
2. SSIO-mode (Synchronous Serial Input/Output)
a. CE-126P print protocol (e.g. LPRINT without preceding OPEN)
b. LPRT-protocol (e.g. OPEN“LPRT:“)
3. PWM-mode (Pulse Width Modulation)
a. CE-126P tape protocol (e.g. BSAVE/BLOAD with a CE-126P)
b. Generic PWM-protocol (e.g. BSAVE/BLOAD with another PC-G850V)
4. PIO-mode (e.g. OPEN“PIO:“)
Programmable, 8-bit parallel port interface
5. PIC-mode (activated by the PIC-loader in the assembler menue)
Programming interface for PIC microcontrollers
The association of physical pins to logical signals (called pin-out) as well as the
configured direction for input (I) or output (O) depends on the active mode. The following
table gives an overview. Looking from the left side of the PC-G850V(S) pin-1 is the
leftmost and pin-11 the rightmost.
Pin
#
SIO-Mode
SSIO/PWM-Mode
PIO-Mode
PIC-Mode
Signal
I/O
Signal
I/O
Signal
I/O
Signal
I/O
1
-
-
-
-
-
-
-
-
2
VCC(+5V)
-
VCC(+5V)
-
VCC(+5V)
-
VCC(+5V)
-
3
GND
-
GND
-
GND
-
GND
-
4
RTS
O
BUSY
O
Bit0
I/O
CP
O
5
DTR
O
DOUT
O
Bit1
I/O
CLK#
O
6
RXD
I
XIN
I
Bit2
I/O
DATAIN
I
7
TXD
O
XOUT
O
Bit3
I/O
DATAOUT
O
8
CD
I
DIN
I
Bit4
I/O
LOWBATT#
I
9
CTS
I
ACK
I
Bit5
I/O
-
-
10
DSR
I
EX1
I
Bit6
I/O
-
-
11
CI
I
EX2
I
Bit7
I/O
-
-
The next sections describe the SIO-mode and respective connection options in detail.
The other modes are covered subsequently.
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