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FEATURES

· Internal 16-bit architecture, selectable external data bus width (16/8 bits)

· Software compatible with V20TM and V30TM (native mode) and V25 and V35 (includes additional instructions)

· Minimum instruction cycle: 160 ns/12.5 MHz (external 25 MHz)

125 ns/16 MHz (external 32 MHz)

· Address space: 16M bytes: 1-Mbyte basic memory space

16-Mbyte extended memory space

· Register file space (in on-chip RAM) : 512 bytes/16 register banks

· I/O space : 64K bytes

· Automatic wait control with memory space divided in variable sizes (max. 6 blocks)

· I/O line (input ports: 11 bits, input/output ports: 42 bits)

· DMA controller (DMAC): Max. 4-channel configuration possible

? Four DMA transfer modes (single transfer, demand release, single step, burst)

? Intelligent DMA modes 1 and 2

· Serial interface: 2 channels

? Asynchronous mode (UART) or clocked mode (CSI) selectable

· Parallel interface: 8 bits

? Centronics data input/output and general-purpose data input/output

· A/D converter (8 bits): 4 channels

· Real-time output port: 4 bits ′ 2 channels or 8 bits ′ 1 channel

· PMW (Pulse Width Modulation) output function : 8 bits