NXP Semiconductors XA-G49
The XA-G49 is a member of Philips’ 80C51 XA (eXtended Architecture) family of high performance 16-bit single-chip microcontrollers. The XA-G49 contains 64k bytes of Flash program memory, and provides three general purpose timers/counters, a watchdog timer, dual UARTs, and four general purpose I/O ports with programmable output configurations.GENERAL DESCRIPTION
A default serial loader program in the Boot ROM allows In-System Programming (ISP) of the Flash memory without the need for a loader in the Flash code. User programs may erase and reprogram the Flash memory at will through the use of standard routines contained in the Boot ROM (In-Application Programming).● Single supply voltage In-System Programming (ISP) of the Flash
● Boot ROM contains low level Flash programming routines for In-Application Programming and a default serial loader using the UART memory (VPP = VDD, or VPP = 12V if desired)
● 2048 bytes of on-chip data RAM
● Supports off-chip program and data addressing up to 1 megabyte (20 address lines)
● Three standard counter/timers with enhanced features (same as XA-G3 T0, T1, and T2). All timers have a toggle output capability
FEATURES
● 4.5V to 5.5V operation. For low voltage operation, consult factory.● 64K bytes of on-chip Flash program memory with In-System Programming capability
● Watchdog timer
● Two e...