WDC 65C134 explained
The Western Design Center (WDC) W65C134S is an 8-bit CMOS microcontroller based on a W65C02S processor core, which is a superset of the MOS Technology 6502 processor.
The W65C134S consists of a fully static 8-bit W65C02S CPU core, 4 KB of ROM containing a machine language monitor, 192 bytes of SRAM, two 16 bit timers, one 16-bit Watch-Dog Timer (WDT) with "restart" interrupt, one UART with baud rate timer, a low power Serial Interface Bus (SIB) configured as a token passing local area network, twenty-two priority encoded interrupts, two crystal inputs (slow 32.768KHz and fast up to 8-MHz), Bus Control Register (BCR) for external memory bus control, interface circuitry for peripheral devices, and many low power features. The W65C134S has been developed for high-reliability applications, as well as where minimum power is required.
Features
- CMOS low power process
- Operating ambient temperature range of -40 °C to +85 °C
- Single 2.8V to 5.5V power supply
- Static to 8 MHz clock operation, as well as 32.768KHz capability
- W65C02S compatible CPU
- 8-bit parallel processing
- Variable length stack
- True indexing capability
- Fifteen addressing modes
- Decimal or binary arithmetic
- Pipeline architecture
- Fully static CPU
- Single chip microcomputer
- Many power saving features
- 56 CMOS compatible I/O lines
- 4096 x 8 ROM on chip
- 192 x 8 RAM on chip
- Low power modes
- WAIt for interrupt
- SToP the clock
- Fast oscillator start and stop feature
- Twenty-two priority encoded interrupts
- BRK software interrupt
- RESET "RESTART" interrupt
- NMIB Non-Maskable Interrupt input
- SIB Interrupt
- IRQ1B level interrupt input
- IRQ2B level interrupt input
- 2 timer edge interrupts
- 7 positive edge interrupt inputs
- 5 negative edge interrupt inputs
- Asynchronous Receiver Interrupt
- Asynchronous Transmitter Interrupt
- UART 7/8-bit w/wo odd or even parity
- 16M byte segmented address space
- 64K byte linear address space
- 4 x 16 bit timer/counter
- Bus control register for external memory
- Internal or external ROM
- 8 Decoded Chip Select outputs
- Surface mount 68 and 80 lead packages
- Real time clock features
- Time of Day (ToD) clock features
See also
External links
