upd70f3017ay Renesas Electronics Corporation., upd70f3017ay Datasheet - Page 343

• Manufacturer Part Number: upd70f3017ay
• Description: V850/sa1tm 32-/16-bit Single-chip Microcontroller
• Manufacturer: Renesas Electronics Corporation.

13.4 Control Registers
(1) Real-time output port mode register (RTPM)
RTO is controlled by using the following two registers.
Cautions 1. Set a port pin to the output mode when it is used as a real-time output port pin.
•
•
This register selects real-time output port mode or port mode in 1-bit units.
RTPM is set by a 1-bit or 8-bit memory manipulation instruction.
RESET input sets RTPM to 00H.
After reset: 00H
RTPM
Real-time output port mode register (RTPM)
Real-time output port control register (RTPC)
2. Data cannot be set to the output latch for a port pin set as a real-time output port pin. To
RTPMn
RTPM7
set an initial value, therefore, set the data to the output latch before setting the port pin to
the real-time output port mode (refer to 13.5 Usage).
0
1
7
R/W
Port mode
Real-time output port mode
RTPM6
CHAPTER 13 REAL-TIME OUTPUT FUNCTION (RTO)
6
RTPM5
Address: FFFFF3A4H
5
User’s Manual U12768EJ4V1UD
Selection of Real-Time Output Port (n = 0 to 7)
RTPM4
4
RTPM3
3
RTPM2
2
RTPM1
1
RTPM0
0
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