upd70f3017ay Renesas Electronics Corporation., upd70f3017ay Datasheet - Page 346

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

(RTPC) to 1, the data of the real-time output buffer registers (RTBH and RTBL) is transferred to the output latch in
synchronization with the generation of the selected transfer trigger (set by EXTR and BYTE
data, only the data of the bits specified in the real-time output port mode by the real-time output port mode register
(RTPM) is output from the bits of RTP0 to RTP7. The bits specified in the port mode by RTPM output 0.
setting of RTPM.
346
RT output latch (H)
RT output latch (L)
INTTM5 (internal)
INTTM4 (internal)
If the real-time output operation is enabled by setting bit 7 (RTPOE) of the real-time output port control register
If the real-time output operation is disabled by clearing RTPOE to 0, RTP0 to RTP7 output 0 regardless of the
Note EXTR: Bit 4 of real-time output port control register (RTPC)
13.6 Operation
CPU operation
A: Software processing by interrupt request input to INTTM5 (RTBH write)
B: Software processing by interrupt request input to INTTM4 (RTBL write)
BYTE: Bit 5 of real-time output port control register (RTPC)
RTBH
RTBL
Figure 13-3. Example of Operation Timing of RTO (When EXTR = 0, BYTE = 0)
D01
A
D11
CHAPTER 13 REAL-TIME OUTPUT FUNCTION (RTO)
D01
B
D02
User’s Manual U12768EJ4V1UD
D11
A
D12
D02
B
D03
D12
A
D13
D03
B
D04
D13
Note
). Of the transferred
A
D14
D04
D14
B