40022 32K ROM; BIOS and BASIC for CPC664 (English)
40025 32K ROM; BIOS and BASIC for CPC6128 (English)
40026 PCW8xxx printer controller ASIC(i8041) 40027 PCW8xxx/9xxx keyboard controller (i8048)
40028 PCW8xxx/9xxx main ASIC
40031 16L8 PAL; Ram management CPC6128
40037 32K ROM; BIOS and BASIC for CPC464 and Late-CPC472-models (Spanish)
40038 32K ROM; BIOS and BASIC for CPC6128 (Spanish)
40040 PC1512 memory gate array
40042 PC1512 keyboard controller (i8048)
40043 PC1512 BIOS (even addresses)
40044 PC1512 BIOS (odd addresses)
40045 PC1512 character ROM
40050 32K ROM; BIOS and BASIC for CPC464 (French)
40051 32K ROM; BIOS and BASIC for CPC6128 (French)
40058 Spectrum +2 ASIC
40077 Spectrum +3 ASIC
40078 PC1512 character ROM (with Greek characters)
40087 PCW9xxx printer controller ASIC
40092 Spectrum +3 ROM 1 (English)
40093 Spectrum +3 ROM 2 (English)
40100 PC1640 EGA ROM
40107 PPC512 BIOS (even addresses)
40108 PPC512 BIOS (odd addresses)
40109 PPC512 character ROM
40112 PPC512 keyboard controller
40120 PCW9xxx parallel printer controller ASIC
40178 PC2086 keyboard controller (i8049)
40179 PC2086 BIOS (even addresses)
40180 PC2086 BIOS (odd addresses)
40184 PC200 BIOS (even addresses)
40185 PC200 BIOS (odd addresses)
40186 PC2086 VGA BIOS
40226 CPC464/CPC6128 "cost-down" ASIC (ARN4) (combines Gate Array, PAL, CRTC, and some small FDC/DRAM/RESET logic)
40464 CPC+ Triple 4bit DAC (for RGB video)