Processor: 8-bit CMOS CPU: `SC-62015' / `ESR-L'
Programming Language: BASIC
System ROM: 256 K Bytes
Memory Capacity: System Internal: 3.8k bytes approx.
Fixed Variable area: 312 bytes
Program/data area: 28600 bytes
Stack: Total: 145 bytes
(subroutine 4 bytes/stack, )
(FOR-NEXT: 21 bytes/stack )
Operators: Addition, subtraction, multiplication, division,
trigonometric and inverse trigonometric functions,
logarithmic and exponential functions, angle
conversion, square and square root, power, sign,
absolute, integer, coordinate conversion, pi, etc.
Numeric Precision: 10 digits (mantissa) + 2 digits (exponent)
single precision mode
20 digits (mantissa) + 2 digits (exponent)
double precision mode
In the CAL, MATRIX and STAT modes, onle the single-
precision mode can be used.
Editing featres: Cursor left and right, line up and down, character
insert, character delete.
Memory protection: Battery Backup
Interface capability: 11 pin (for cassette interface, disk, printer, etc)
Serial input/output features:
Standards: start-stop transmission (asynchronous) system
Half/full duplex
Baud rates: 300,600,1200,2400,4800,9600 baud (bps)
parity bits: Even, odd or no parity
data bits: 7 or 8 bits
stop bit: 1 or 2 bits
connectors used: 15-pin connector (for external equipment)
output signal level: CMOS level (4 to 6 volts)
Interfacing signals: Inputs: RD,CS,CD
Outputs: SD,RS,RR,ER
Others: SG,FG,VC
Display: liquid crystal display with 4 lines and 40 columns of
characters. Each character is 5*7 pixels.
Total pixels: 32(V)x240(H)
Keys: 89 keys
Alphanumeric, numeric, special symbols, and functions
numeric keypad
programmable function keys
Power supply: for computer operation:
6.0 Vdc Type-AAA dry cell battery (R03) x 4
for memory backup:
3.0 Vdc Lithium battery (CR2016) x 1
Power consumption: 0.07W at 6.0 Vdc
Approximately 70 hours of continuous operation under
normal conditions (based on 10 minutes of operation
or program execution and 50 minutes of display per
hour at a temperature of 20 degrees C / 68 degrees F).
The operating time may vary depending on usage
and the type of battery used.
Operating Temperature:0-40 degrees C (32-104 degrees F)
Dimensions: 200(W)x100(d)x14(H)mm
7-7/8"(W)x3-15/16"(D)x9/16"(H)
Weight: 250g (0.55lb) (with batteries)
Accessories: hard cover, four dry batteries, one lithium batteries
and operation manual
Options: Plug-in RAM cards 8kb (CE-212M), 16kB (CE-2H16M)
32kB (CE-2H32M), 64kB (CE2H64M), 128kB
Printer Cassette interface (CE-126P)
Printer (CE-515P)
Pocket disk drive (CE-140F)
others
Processor Specifications:
8-bit CMOS CPU: Designation: SC-62015, Name: ESR-L
Memory Space: Data: 1Mb continuous
Program: 64 kbytes x 16 segments
Built-in 236 byte RAM:This internal memory makes up a separate memory space
from the external memory, and its address allocation
is as follows:
00H to EBH: RAM
ECH to FFH: Pointers, control command registers,
data buffers, I/O ports, etc.
Main clock: ceramic-oscillated 2.304 MHz (1.30 usec. exectute cycle)
Changeable by PLA to:
1.536 MHz (1.95 usec. execute cycle) or
3.072 MHz (0.98 usec. execute cycle)
Sub-clock: CR-oscillated typ. 40kHz (as a display clock and as a
timer for a half), or
Crystal-oscillated 32.768 kHz (used when providing
a clock function)
Interrupt: 7 factors: 2 timers, 2 keys, 2 UARTS, and external
factor
UART: Baud rate: 300 to 9600
Parity: even/odd/no
Character length: 7/8
stop bit: 1/2
break out function
I/O: A0 to A18: address buses
CE0 to CE7: chip select output pins
DIO0 to DIO7: data buses
MRQ RD WR: memory control pin
KO1 to KO15: key strobe output ports
KI0 to KI7: key input ports
E0 to E15: general I/O ports
0A HA DIS: LCD driver control pin
TXD: UART data output pin
RXD: UART data input pin
CO: CMT data output pin
CI: CMT data input pin
IRQ: External interrupt input pin
ON: ON key input pin
The Sharp PC-E500 was available from many SHARP dealers all around the world.The Sharp PC-E500 was used in a research project (The development of a stereoscopic video system) conducted by me in 1990-1992.