Remote Processing RPC-150 - Manual (Page 24)

TECHNICAL INFORMATION
Page 22 RPC-150
ELECTRICAL
CPU
64180, 9.216 M hz clock
Memory
CAMBASIC, 32K ROM
Programming and data is 32K RAM
Program is 32K EPROM (U3)
Memory speeds are 80 ns or faster
D i gi ta l I / O
The RPC -150 has 47 digital I/O lines. 23 are from J2.
The other 24 are from J3. J2 has 7 high cu rrent outputs,
which m ay be jum pered fo r inputs. The keyp ad port,
J5, uses 8 of the 23 lines on J2. All ports use an 82C55
for interfacing.
The specifications below are for all digital I/O except for
the eight high current lines at J2.
Drive curr ent 2.5 ma m aximum per line,
sink or source. TTL
compatible.
Output low voltage 0.45V m ax at 2.5 mA , 1V
max at 15 mA for opto rack.
Output high v olts 2.4V m inimum, sink or source
at rated cu rren t.
All digital input lines are TTL compatible.
High cu rrent ou tput at J2
7 of the 24 lines can drive up to 500 ma at 50V. Refer
to CHAPTER 6, D IGITAL AND OPTO PORTS for
limitations.
Keypad input
8 lines accept a 16 position matrix keypad. Scanning
a n d d e bo u nc e pe r f or m e d i n C A M B A SI C .
Serial ports
Two RS-232D serial ports. All have RxD and TxD
lines. COM1 has only these lines. COM2 also has CTS
and RT S line. Baud rates f rom 600 to 38. 4K, 7 or 8 data
bits, par ity even, odd , or none, 1 or 2 stop bits.
EPROM and programmer
Accepts 29C256 or equivalent EPROM.
Size:32K
Speed:200ns or faster.
Power requireme nts
+ 5VDC ±5% at 100 ma.
RS-232 voltages generated on card.
Current consumption does not include any opto-modules
or other acc essories.
MECHANICAL
Size: 4.5" x 6.0"
Maximum height: 0.675" , no cables installed.
Mounting holes: 4 each corner. Hole size is 0.156" dia.
See drawing.
MEMORY AND I/O MAP
Memory
Description Address
C A M B A SI C , U 2 & 0 00 0 0 - & 07 F F F
R A M , U 1 & 0 80 0 0 - & 0F F F F
I / O
J3 Digital &0000 - &0003
J2 Digital &0200 - &0203
Keypad &0202 - &0202
Internal processor &008 0 - &00 BF
Program EPRO M(U3) & 0 30 0 - & 7 F F F
Only I/O addr ess &8000 to &FF FF ar e available off
card. No mem ory addresses are available off card.
JUMPER DESCRIPTIONS
A * after a jumper position indicates factory default and
is jumpered.
Jumper Description
W 1 U3 control
[3-4]* U3 w rite enable
[17-18]* U3 chip select
* = default