Renesas Hitachi H8S/2191, Hardware Manual, Page: 304 / 1065

Rev. 2.0, 11/00, page 277 of 1037
(5) Real Time Output Trigger Edge Select Register (RTPEGR)
0
0
1
0
R/W
2
1
3
1
4
1 1
5 6
1
7
— — — — — —
— — — — — —
RTPEGR1 RTPEGR0
1
R/W
Bit :
Initial value :
R/W :
The realtime output trigger edge select register (RTPEGR) specifies the edge sense of the
external or internal trigger input for the realtime output.
RTPEGR is an 8-bit read/write enable register. When reset, RTPEGR is initialized to H'FC.
Bits 7 to 2: Reserved Bits
When the bits are read, 1 is always read. The write operation is invalid.
Bits 1 and 0: Realtime Output Trigger Edge Select (RTPEGR1, RTPEGR0)
RTPEGR1 and RTPEGR0 select the edge sense of the external or internal trigger input for the
realtime output.
Bit 1 Bit 0
RTPEGR1 RTPEGR0
Description
0 Inhibits a trigger input (Initial value) 0
1 Selects the rising edge of a trigger input
0 Selects the falling edge of a trigger input 1
1 Selects both the leading and falling edges of a trigger input
11.8.3 Pin Functions
This section describes the port 6 pin functions and their selection methods.
(1) P67/RP7 to P60/RP0
P67/RP7 to P60/RP0 are switched as shown below according to the PMR6n bit in PMR6 and
the PCR6n bit in PCR6.
PMR6n PCR6n Pin Function Output Value
Value When PDR6n
was read
0 P6n input pin

P6n pin 0
1 P6n output pin PDR6n
0 High-impedance
*
1
1
RPn output pin
PDRS6n *
PDR6n
Note:
*
When PMR6n = 1 (realtime output pin), indicates the state after the PCR6n setup
value has been transferred to PCRS6n by a trigger input.
(n = 7 to 0)