NEC uPD78P078 - Manual (Page 498)

498
CHAPTER 21 REAL-TIME OUTPUT PORT
7
0
Symbol
RTPC
6
0
5
0
4
0
3
0
2
0
<1>
BYTE
<0>
EXTR
Address
FF36H 00H
After
Reset
R/W
R/W
EXTR
0
1
Real-time Output Control by INTP2
INTP2 not specified as real-time output trigger
INTP2 specified as real-time output trigger
BYTE
0
1
Real-time Output Port Operating Mode
4 bits x 2 channels
8 bits x 1 channel
(3) Real-time output port control register (RTPC)
This register sets the real-time output port operating mode and output trigger.
Table 21-3 shows the relationship between the real-time output port operating mode and output trigger.
RTPC is set with a 1-bit or 8-bit memory manipulation instruction.
RESET input sets this register to 00H.
Figure 21-5. Real-time Output Port Control Register Format
Table 21-3. Real-time Output Port Operating Mode and Output Trigger
BYTE EXTR Operating Mode RTBH
→
Port Output RTBL
→
Port Output
0 INTTM2 INTTM1
1 INTTM1 INTP2
0 INTTM1
1 INTP2
4 bits x 2 channels
8 bits x 1 channel
0
1