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RC2014 Z80 CTC
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SC102 v1.1 Z80 CTC for RC2014

2 years ago 1245
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SC102 v1.1 (

Z80 Counter/Timer Channels (CTC) module for RC2014


  • Full Z80 mode 2 interrupt support (IEI/IEO daisy-chain)
  • Software control of the baud rate for SIO port B
  • Timer and clock tick interrupt
  • Source of bus clock (option) to potentially reduce board count
  • On-board clock option to make it independent of the CPU clock
  • Interrupt mode 2 converter for up to 4 devices

Documentation at


SC102 v1.1 CTC

SC102 v1.1 CTC


ID Name Designator Footprint Quantity Mounted
1 27576c3c52f7426c9fac5d0f5231295a SW1 SW-DIP-X6-PIANO 1 Yes
2 45c574eccea54a669321212b252d4dcc RP1 SIL-9 1 Yes
3 0bf112b56253453c9957decf580ccc6b P3 HDR-1X10-A-M-2.54MM 1 Yes
4 23ec75d1a1984af6b3e54483dea2140f U2 PDIP-28-0.6 1 Yes
5 543d0559cc3c45de8049de775cd4bb0c U1 PDIP-20 1 Yes
6 c7e5e1bffa4047f4b50e834150bf4008 X1 PDIP-08/14 1 Yes
7 f66a23276c6d422a8ede49c74c82980d P1 HDR-1X39-A-M-R-2.54MM 1 Yes
8 7006faff588a42179e8d714cf55e4284 JP7 HDR-2X04-S-M-2.54MM 1 Yes
9 7006faff588a42179e8d714cf55e4284 JP6 HDR-2X04-S-M-2.54MM 1 Yes
10 7006faff588a42179e8d714cf55e4284 JP3 HDR-2X04-S-M-2.54MM 1 Yes
11 7006faff588a42179e8d714cf55e4284 JP4 HDR-2X04-S-M-2.54MM 1 Yes
12 7006faff588a42179e8d714cf55e4284 JP5 HDR-2X04-S-M-2.54MM 1 Yes
13 ef3708183a594802accecd2650f2d634 JP1 HDR-1X02-S-M-2.54MM 1 Yes
14 ef3708183a594802accecd2650f2d634 JP2 HDR-1X02-S-M-2.54MM 1 Yes
15 1fe0b40a14534e1eb977dcb685d131e1 P1A HDR-1X23-S-M-2.54MM 1 Yes
16 b19c3b95eb4142698804e047af41d40a P2 HDR-1X02-A-M-2.54MM 1 Yes
17 994f4acf33ff4e66aaa5dbbeb5e3fa4f C1,C2,C3,C4 CAP-RAD-2.54MM 4 Yes
18 34a7e233c2574249bddb82c64475f538 R1,R2,R3,R4 RES-0.3 4 Yes




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