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8253 chip

No change in size, 03:23, 22 February 2010
/* Usage in CPC interfaces */
Also used by Aleste 520EX CPC clone:
F4X0h Aleste_PPIPortA_PsgPortAAleste PPI Port A, Baudrate Timer 0 (RX Clock) (W) F4X1h Aleste_PPIPortA_PsgPortAAleste PPI Port A, Baudrate Timer 1 (TX Clock) (W) F4X2h Aleste_PPIPortA_PsgPortAAleste PPI Port A, Baudrate Timer 2 (FUTURE) (W) F4X3h Aleste_PPIPortA_PsgPortAAleste PPI Port A, Timer 0-2 Control Registers (W)
Clock Input for RX/TX is 4MHz, Clock output goes to a 8251 chip,
Clock Input for FUTURE is HSYNC, Clock output selects 1st/2nd color set,
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