diff options
Diffstat (limited to 'src/emu/bus/cpc/playcity.h')
-rw-r--r-- | src/emu/bus/cpc/playcity.h | 21 |
1 files changed, 10 insertions, 11 deletions
diff --git a/src/emu/bus/cpc/playcity.h b/src/emu/bus/cpc/playcity.h index 0f904da3bc3..0c35887e345 100644 --- a/src/emu/bus/cpc/playcity.h +++ b/src/emu/bus/cpc/playcity.h @@ -1,15 +1,15 @@ -/* +/* PlayCity expansion device - I/O ports: - * F880 - Z80CTC channel 0 (input is system clock (4MHz), output to YMZ294 clock) - * F881 - Z80CTC channel 1 (input from CRTC CURSOR, output to /NMI) - * F882 - Z80CTC channel 2 (input is system clock (4MHz), output to channel 3 input) - * F883 - Z80CTC channel 3 (input is channel 2 output) - * F884 - YMZ294 #1 (right) data - * F888 - YMZ294 #2 (left) data - * F984 - YMZ294 #1 (right) register select - * F988 - YMZ294 #2 (left) register select + I/O ports: + * F880 - Z80CTC channel 0 (input is system clock (4MHz), output to YMZ294 clock) + * F881 - Z80CTC channel 1 (input from CRTC CURSOR, output to /NMI) + * F882 - Z80CTC channel 2 (input is system clock (4MHz), output to channel 3 input) + * F883 - Z80CTC channel 3 (input is channel 2 output) + * F884 - YMZ294 #1 (right) data + * F888 - YMZ294 #2 (left) data + * F984 - YMZ294 #1 (right) register select + * F988 - YMZ294 #2 (left) register select */ #ifndef CPC_PLAYCITY_H_ @@ -64,4 +64,3 @@ extern const device_type CPC_PLAYCITY; #endif /* CPC_PLAYCITY_H_ */ - |