MPS6526

, . . , commodore ~ aanlcanduct;ar group ~UYAJ@~ MPS 6526 COMPLEX INTERFACE ADAPTER (CIA) 6526 COMPLEX INTERFACE ADAPTER (CIA) DESCRIPTION The 6526 Complex Interface Adapter (CIA) is a 65XX bus compatible peripheral Interface device with extremely flexible timing and I/O capabilities. FEATURES 16 Individually programmable I/O lines 8 or 16-Bit handshaking on read or write 2 independent, linkable 16-Bit interval timers 24-hour (AM/PM) time of day clock with programmable alarm 8-Bit shift register for serial I/O 2TTL Load capability CMOS compatible I/O lines 1 or 2 MHz operation available ORDERING INFORMATION MXS 6526 1 40 CNT PAO 2 39 SP PA1 3 PA2 4 PA3 5 PA4 6 PA5 7 38 RSO 37 RS1 36 RS2 35 RS3 34 RES PA6 8 33 DBO PA7 9 32 DB1 PBO 10 6526 31 DB2 PB1 11 30 DB3 PB2 12 29 DB4 PB3 13 28 DB5 PB4 14 27 DB6 PB5 15- PB6 16 PB7 17 Pc 18 TOO 19 vee 20 26 DB7 25 ~2 24 FLAG 23 es 22 RNV 21 IRQ 2-84 6526 BLOCK DIAGRAM DATA BUS BUFFERS MPS 85...