Click to expand full text
'1'Rockwell
R6518 One-Chip Microprocessor
R6518
INTRODUCTION
FEATURES
• Enhanced 6502 CPU - Four new bit manipulation instructions: Set Memory Bit (SMB) Reset Memory Bit (RMB) Branch on Bit Set (BBS) Branch on Bit Reset (BBR) - Decimal and binary arithmetic modes - 13 addressing modes - True indexing
• 192-byte static RAM
• 16 TTL-compatible I/O lines
• One B-bit port with programmable latched input
• Two 16-bit programmable counter/timers, with latches - Pulse width measurement - Asymmetrical pulse generation - Pulse generation - Interval timer - Event counter - Retriggerable interval timer
• Serial port - Full-duplex asynchronous operation mode - Selectable 5- to B-bit characters - Wake-up feature - Synchronous shift register mode - Standard programmable bit rates, programmable up to