Mitsubishi Motors DS5000TK - Manual (Page 104)

USER’S GUIDE
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RPC CONTROL REGISTER – RPCTL (ADDRESS 0D8H) Figure 12–6
RNR – EXBS AE IBI DMA RPCON RG0
Bit Description:
RPCTL.3: IBI
When using the RPC mode, an interrupt may be required for the Input Buffer
Flag. This interrupt is enabled by setting the Input Buffer Interrupt (IBI) bit.
At this time, the timer 1 interrupt is disabled, and this RPC mode interrupt
is used in its place (vector location 1BH). This bit can be set only when the
RPCON bit is set.
Initialization: Cleared on all resets, and when the RPCON bit is cleared.
Read Access: Can be read at any time.
Write Access: Can be written when RPC mode is enabled (RPCON=1).
RPCTL.2: DMA
This bit is set to enable DMA transfers when RPC mode is invoked. It can
only be set when RPCON=1.
Initialization: Cleared on all resets, and when the RPC is cleared.
Read Access: Can be read at any time.
Write Access: Can be written when RPC mode is enabled (RPCON=1).
RPCTL.1: RPCON
Enable the 8042 I/O protocol. When set, Port 0 becomes the data bus, and
Port 2 becomes the control signals as shown in Figure 12–3.
Initialization: Cleared on all resets.
Read Access: Can be read at any time.
Write Access: Can be written at any time.