RCM2020中文資料Digi數(shù)據(jù)手冊PDF規(guī)格書

1.1 Features

? Small size: 1.90 × 2.30 (48.3 mm × 58.4 mm)

? Microprocessor: Rabbit 2000 running at 25.8 MHz (RCM2000 and RCM2010)

? 40 CMOS-compatible parallel I/O lines grouped in five 8-bit ports (shared with serial

ports)

? 8 data lines (D0–D7)

? 13 address lines (A0–A12)

? I/0 read, write, buffer enable

? Status, watchdog and clock outputs

? Two startup mode inputs for master/slave configuration

? External reset input

? Reset output

? Five 8-bit timers, two 10-bit timers; five timers are cascadable in pairs

? 256K flash EPROM, 512K SRAM

? Real-time clock

? Watchdog supervisor

? Provision for customer-supplied backup battery via connections on header J2

? Four CMOS-compatible serial ports: maximum asynchronous baud rate of 806,400 bps,

maximum synchronous baud rate of 6.45 Mbps. Two ports are configurable as clocked

ports.

Appendix A, “Specifications,” provides detailed specifications for the RCM2000.

Three versions of the RCM2000 are available. Their standard features are summarized in

Table 1.