Remote Processing RPC-52 - Manual (Page 35)

TECHNICAL INFORMATION
Page 33
ELECTRICAL SPECIFICATIONS
CPU
82C552, 22. 1184 Mhz clock
Memory
RPBASIC-52, 32K ROM
Program ming and data is 32K or 128K RAM standard,
512K Op tional.
RAM is battery backed up. Battery life is 5-10 years
depending upon RAM size, type, and operating time.
Maximum program is 32K EEPROM
D i gi ta l I / O
The RPC -52 has 24 digital I/O lines. 24 are from J4,
which is a ge neral pur pose por t.
The specifications below are for all digital I/O except for
the eight high current lines at J4.
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 J4
8 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
10 lines accept a 16 position matrix keypad. Scanning
and debounce performe d in RPBASIC-52.
Display output
14 digital and 6 power and ground lines used to control
LCD , VF , and LC D graphics displays. D isplays
supported in RPBASIC-52.
Serial ports
Two RS-232D serial ports. All have RxD and TxD
lines. COM0 has only these lines. COM1 also has CTS
and RTS lines. C OM1 configurable to RS-232 or R S-
422/485. Termination network for RS-422/485
available. Baud rates from 300 to 38.4K. COM1
programmable baud rates only. COM 1 programmable 7
or 8 data bits, parity even, odd, or none.
EEPROM and programer
Accepts 29C256 or equivalent EEPROM.
Size: 32K
Opto module rack
Four position accepts G4 or G5 series I/O modules
Calendar/Clock
Accur acy to 1 m inute/m onth
Supported by RPBASIC -52
Battery backup standard. Expected life 5 to 10 years
depending upon RAM installed and operating time.
Watchdog timer, reset
Watch dog timer resets card for 100 ms minimum when
enabled.
Time between re sets is 1.0 to 2.0 seconds
Push button reset included.
Power requireme nts
+ 5 ±5% at 90 ma operating.
RS-232 voltages generated on card.
Current consumption does not include any opto-modules
or other acc essories.
MEMORY AND I/O bank map
Memory
Description Address
R P B AS I C -5 2 , U 2 0 0 00 H - 7 F F F H
RAM , U 3, 32K 0 0 00 0 H - 07 F F F H
128K 0 0 00 0 H - 1F F F F H
512K 0 0 00 0 H - 7F F F F H
I/O Bank B a nk N o
RAM (U3) 0
EEPR OM (U 4) 1
UART (U9) 2
Digital I/O (U19)(J4) 3
Display/keypad (U15)(J5& 6) 4
Clock/calendar (U 14)
5
Opto/user jumpe rs (U17) 6
M E C H A N I C A L SP E C I F IC A T I O N S
Size
4.7" x 7.0"