Introduction; Overview; Features; Processor - Applied Data Systems Bitsy Plus User Manual

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Introduction

1.1

Overview

The Bitsy Plus is a full-featured single board computer using the SA-1110 StrongARM RISC
microprocessor and SA-1111 Companion Chip. The Bitsy Plus is designed to meet the needs of
embedded and graphical systems developers.
This manual applies to Revision A of the Bitsy Plus. The revision history of the Bitsy Plus is
listed in chapter 7.
1.2

Features

1.2.1

Processor

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1.2.2

Power Supply

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1.2.3

Memory

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1.2.4

Communications

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1
The Bitsy Plus supports 128 MiB SDRAM. However, those components are not yet
commercially available as of April 2003.
2
MiB is the IEC abbreviation for mebibyte = 2
abbreviations are based on the 1998 IEC standard for binary multiples. For further reading, see
the US NIST web site,
3
The Bitsy Plus supports synchronous and asynchronous flash. The 64 MiB flash option is
available only in synchronous flash.
4
CompactFlash is a trademark of the CompactFlash Association, http://www.compactflash.org/.
ADS document # 110114-1001A
SA-1110 32-bit StrongARM
SA-1111 Companion Chip
Clock rates up to 206 MHz
Battery-Backed Real-Time Clock
6-15 V Input Range
Battery Trickle Charger
1 2
16, 32, 64 or 128 MiB synchronous DRAM
3
8, 16, 32 or 64 MiB Flash
PCMCIA and CompactFlash
Supports CF cards with optional personality board
USB 1.1 Host port (low 1.5 Mbit/s and full 12 Mbit/s speeds) and full speed Client port
Three Serial Ports
Serial 1: RS-232, 3.3V CMOS (9-wire)
Serial 2: 3.3V CMOS (3-wire); IrDA and RS-232 with optional personality board
Serial 3: RS-232, 3.3V CMOS (5-wire)
http://physics.nist.gov/cuu/Units/binary.html
4
(CF), Type I and II, 3.3 and 5 V
20
byte = 1 048 576 byte. The kibi and mebi
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