PXAG37KFA,512 NXP

INTEGRATED CIRCUITS XA-G37 XA 16-bit microcontroller family 32K OTP, 512 B RAM, watchdog, 2 UARTs Product data 2002 Mar 25 Replaces datasheet XA-G3 of 2001 Jun 25 Philips Semiconductors Product data XA 16-bit microcontroller family XA-G37 32K OTP, 512 B RAM, watchdog, 2 UARTs FAMILY DESCRIPTION . 1 SPECIFIC FEATURES OF THE XA-G37 1 ORDERING INFORMATION . 1 PIN CONFIGURATIONS 2 44-Pin PLCC Package 2 44-Pin LQFP Package 2 LOGIC SYMBOL . 2 BLOCK DIAGRAM . 3 PIN DESCRIPTIONS . 4 SPECIAL FUNCTION REGISTERS . 5 XA-G37 TIMER/COUNTERS 8 Timer 0 and Timer 1 8 New Enhanced Mode 0 . 9 Mode 1 . 9 Mode 2 . 9 Mode 3 . 9 New Timer-Overflow Toggle Output 10 Timer T2 10 Capture Mode 10 Auto-Reload Mode (Up or Down Counter) 10 Baud Rate Generator Mode 11 Programmable Clock-Out . 11 WATCHDOG TIMER 13 Watchdog Function 13 Watchdog Control Register (WDCON) 13 Watchdog Detailed Operation . 13 WDCON Register Bit Definitions 14 UARTS . 14 Serial Port Control Register . 15 TI Flag . 15 9-bit Mode . 15 Bypassing Double Buffering 15 Note Regarding Older XA-G37 Devices 15 CLOCKING SCHEME/BAUD RATE GENERATION . 16 Using Timer 2 to Generate Baud Rates . 16 Prescaler Select for Timer Clock (TCLK) . 16 UART INTERRUPT SCHEME . 17 Error Handling, Status Flags and Break Detect 17 Multiprocessor Communications . 17 Automatic Address Recognition . 17 I/O PORT OUTPUT CONFIGURATION . 19 EXTERNAL BUS . 19 RESET . 19 RESET OPTIONS 19 POWER REDUCTION MODES 19 INTERRUPTS . 20 ABSOLUTE MAXIMUM RATINGS . 21 DC ELECTRICAL CHARACTERISTICS 21 AC ELECTRICAL CHARACTERISTICS 22 AC ELECTRICAL CHARACTERISTICS (VDD = 4.5 V TO 5.5 V) . 22 AC ELECTRICAL CHARACTERISTICS (VDD = 2.7 V TO 4.5 V) . 23 EPROM CHARACTERISTICS . 31 Security Bits 31 REVISION HISTORY . 34 i 2002 Mar 25