Pin Functions - Renesas Hitachi H8S/2194 Series Hardware Manual

(5) Real Time Output Trigger Edge Select Register (RTPEGR)
Bit : 7
—
Initial value :
1
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
0 0
1
1 0
1
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
0 0
1
1 0
1
Note: When PMR6n = 1 (realtime output pin), indicates the state after the PCR6n setup
*
value has been transferred to PCRS6n by a trigger input.
6 5 4
— — —
1 1 1
— — —
Description
Inhibits a trigger input
Selects the rising edge of a trigger input
Selects the falling edge of a trigger input
Selects both the leading and falling edges of a trigger input
Pin Function
P6n input pin
P6n output pin
RPn output pin
3 2
— —
RTPEGR1 RTPEGR0
1 1
— —
Output Value

PDR6n
High-impedance*
PDRS6n*
Rev. 2.0, 11/00, page 277 of 1037
1 0
0 0
R/W R/W
(Initial value)
Value When PDR6n
was read
P6n pin
PDR6n
(n = 7 to 0)