The names of signals of the CLK group have many synonyms used by different authors at different times.
| Signal | Dir | From/Where To | Description |
|---|---|---|---|
| clk_ena | input | From Core | |
| osc_ena | input | From Core | |
| cpu_wr_sync | output | To MMIO,Arb | |
| cpu_wr | input | From Core | |
| ext_cs_en | output | To Arb | |
| test_1 | input | From MMIO | |
| cpu_mreq | input | From Core | |
| sync_reset | output | To Core | |
| reset | input | From /RESET Pad | |
| osc_stable | input | From MMIO | |
| n_test_reset | input | From MMIO | |
| n_clk_in | input | From CK1_CK2 Pad | |
| n_reset2 | output | To Ser,MMIO,Arb,PPU,APU | Global reset signal |
| clk1 | output | To Core | (Aka BOWA,ADR_CLK_N) |
| clk2 | output | To Core,MMIO,Arb,APU | (Aka DATA_VALID,ADR_CLK_P) |
| clk3 | output | To Core | (Aka CPU_PHI,DATA_CLK_P) |
| clk4 | output | To Core,MMIO,APU,PHI Pad | (Aka #CPU_PHI,DATA_CLK_N) |
| clk5 | output | To Core | (Aka INC_CLK_N) |
| clk6 | output | To Core,MMIO,PPU,APU | (Aka INC_CLK_P) |
| clk7 | output | To Core,HRAM,APU | (Aka BUKE,LATCH_CLK) |
| clk8 | output | To Core | (Aka BOMA_1MHZ,MAIN_CLK_N) |
| clk9 | output | To Core,MMIO,APU | (Aka BOGA_1MHZ,MAIN_CLK_P) |
| cclk | output | To APU,PPU | (Aka AZOF) |
| Row | Cells |
|---|---|
| 1 | not, not, not2(unused), not3, nand, nor, not2(unused), not3, nor, oan, not, not2, or, dffrnq_comp, nor_latch, nor, not, not, dffrnq_comp, not, dffrnq_comp, not, dffrnq_comp, not, dffrnq_comp, not, not2, nand, nand, not, not6 |
| 2 | not6, not6, or, not, not, nand3, not, not2(unused), not2(unused), not2(unused), not2(unused), not2(unused), not, not, nand4, not6, not, not, nor3, not4+not6, not4+not6, not2, nor3, not4+not6, not4+not6, not2, nor, not6, not6, and, not, not |