User`s manual

44 RabbitCore RCM2000
Table A-1 lists the electrical, mechanical, and environmental specifications for the RCM2000 .
Table A-1. RCM2000 Specifications
Parameter RCM2000 RCM2010 RCM2020
Microprocessor
Rabbit 2000
®
at 25.8 MHz Rabbit 2000
®
at 18.432 MHz
Flash EPROM 256K (supports 128K–512K)
SRAM 512K 128K
Backup Battery
Connection for user-supplied backup battery
(to support RTC and SRAM)
General-Purpose I/O
40 parallel I/0 lines grouped in five 8-bit ports (and shared with serial ports):
• 26 configurable I/O
• 8 fixed inputs
• 6 fixed outputs
Additional Inputs 2 startup mode (for master/slave), reset in
Additional Outputs Status, clock, watchdog, reset out
Memory, I/O Interface 13 address lines, 8 data lines, I/O read/write, buffer enable
Serial Ports
Four 5 V CMOS-compatible ports.
Two ports are configurable as clocked ports, one is a dedicated RS-232
programming port.
Serial Rate
Maximum burst rate = CLK/32
Maximum sustained rate = CLK/64
Slave Interface
A slave port allows the RCM2000 to be used as an intelligent peripheral
device slaved to a master processor, which may either be another Rabbit
2000 or any other type of processor
Real-Time Clock Yes
Timers
Five 8-bit timers cascadable in pairs, one 10-bit timer with 2 match registers
that each have an interrupt
Watchdog/Supervisor Yes
Power 4.75 V to 5.25 V DC, 130 mA 4.75 V to 5.25 V DC, 98 mA
Standby Current 10 µA (typical)
Operating Temperature –40°C to +85°C
Humidity 5% to 95%, noncondensing
Connectors Two IDC headers 2 × 20, 2 mm pitch
Board Size
1.90" × 2.30" × 0.55"
(48.3 mm × 58.4 mm × 14 mm)