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System Specification for C65Fred BowenMarch 1, 1991

2.3.6.4 Register Map

C65 UART
R/WREGNAMED7D6D5D4D3D2D1D0
R/W0DATA R/X7R/X6R/X5R/X4R/X3R/X2R/X1R/X0
R 1STATUS XMIT
DONE
XMIT
EMPTY
ENDT
(R/W)
IDLE
(R/W)
FRAMEPARITYOVER
RUN
RCVR
FULL
R/W2CONTROL XMIT
ON
RCVR
ON
UART MODEWORD LENGHTPARITY
ODD
PARITY
EVEN
R/W3BAUD LO BRL7BRL6BRL5BRL4BRL3BRL2BRL1BRL0
R/W4BAUD HI BRH7BRH6BRH5BRH4BRH3BRH2BRH1BRH0
R/W5INT MASKXMIT
IRQ
RCVR
IRQ
XMIT
NMI
RCVR
NMI
--------
R 6INT FLAGXMIT
IRQ
RCVR
IRQ
XMIT
NMI
RCVR
NMI
--------



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