Operation - Renesas Hitachi H8S/2194 Series Hardware Manual

11.8.4

Operation

Port 6 can be used as a realtime output port or general I/O output port by PMR6. Port 6
functions as a realtime output port when PMR6 = 1 and as a general I/O port when PMR6 = 0.
The operation per port 6 function is shown below. (See figure 11.2.)
RTPEGR write
CK
RTPEGR
RTPSR write
CK
RTPSR
RMR6 write
CK
RMR6
RDR6 write
CK
RDR6
RDR6 read
RCR6 write
CK
RCR6
[Legend]
PMR6 : Port mode register 6
PCR6 : Port control register 6
PDR6 : Port data register 6
PCRS6 : Port control register slave 6
PDRS6 : Port data register slave 6
Rev. 2.0, 11/00, page 278 of 1037
Internal trigger
HSW
Selection
circuit
Selection
circuit
Figure 11.2 Port 6 Function Block Diagram
CK
RDRS6
CK
RCRS6
RTPSR : Realtime output trigger select register
RTPEGR : Realtime output trigger edge select register
HSW : Internal trigger signal
TRIG : External trigger pin
External trigger
TRIG
P6/RP