XA 16-bit microcontroller 32K/1K OTP/ROM/ROMless/ 8-channel 8-bit A/D/ low voltage 2.7 V.5.5 V/ I2C/ 2 UARTs/ 16MB address range
Description
INTEGRATED CIRCUITS
XA-S3 XA 16-bit microcontroller
32 K/1 K OTP/ROM/ROMless, 8-channel 8-bit A/D, low voltage (2.
7 V–5.
5 V), I2C, 2 UARTs, 16 MB address range
Preliminary specification Supersedes data of 2000 Aug 22 2000 Dec 01
Philips Semiconductors
Philips Semiconductors
Preliminary specification
XA 16-bit microcontroller
32 K/1 K OTP/ROM/ROMless, 8-channel 8-bit A/D, low voltage (2.
7 V–5.
5 V), I2C, 2 UARTs, 16 MB address range
XA-S3
GENERAL DESCRIPTION
The XA-S3 device is a member of Philips Semiconductors’ XA (eXtended Architecture) family of high performance 16-bit single-chip microcontrollers.
The XA-S3 device combines many powerful peripherals on one chip.
With its high performance A/D converter, timers/counters, watchdog, Programmable Counter Array (PCA), I2C interface, dual UARTs, and multiple general purpose I/O ports, it is suited for general multipurpose high performance embedded control functions.
• Three standard counter/timers with enhanced features.
All timers
have a toggle output capability.
• Watchdog timer.
• 5-channel 16-bit Programmable Counter Array (PCA).
• I2C-bus serial I/O port with byte-oriented master and slave
functions.
Specific features of the XA-S3
• 2.
7 V to 5.
5 V operation.
• 32 K bytes of on-chip EPROM/ROM program memory.
• 1024 bytes of on-chip data RAM.
• Supports off-chip addressing up to 16 megabytes (24 address
lines).
A clock output reference is added to simplify external bus interfacing.
• Two enhanced UARTs with independent baud rates.
• Seven software interrupts.
• Active low reset output pin indicates all reset occurrences
(external reset, watchdog reset and the RESET instruction).
A reset source register allows program determination of the cause of the most recent reset.
• High performance 8-channel 8-bit A/D converter with automatic
channel scan and repeated read functions.
Completes a conversion in 4.
46 microseconds at 30 MHz.
Alternate operating mode allows 10-bit conversion results.
• 50 I/O pins, each...
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