UPD78F0988AGC-8BS Renesas Electronics America, UPD78F0988AGC-8BS Datasheet - Page 193

• Manufacturer Part Number: UPD78F0988AGC-8BS
• Manufacturer: Renesas Electronics America

Specifications of UPD78F0988AGC-8BS

• Lead Free Status / Rohs Status: Supplier Unconfirmed

10.4 Operation of Real-Time Output Port
(1) Using RTP0 to RTP7 as the real-time output port ..... Real-time output port 0
(8 bits
When bit 7 (RTPOE00) of real-time output port control register 0 (RTPC00) is 1, and real-time output operation
is enabled, the data in real-time output buffer register 0 (RTBH00, RTBL00) is transferred to the output latch
in synchronization with the generation of the selected transfer trigger (set by EXTR00 and BYTE00). Of the
transferred data, only the data of the bit specified for the real-time output port by setting real-time output port
mode register 0 (RTPM00) is output from bits RTP0 to RTP7. The ports specified as port mode by RTPM00
can be used as general-purpose input/output ports.
The operation mode can be selected as 8 bits
INV0, it is possible to invert the output waveform. Also, by setting PWMCL0 and PWMCH0, it is possible to
perform PWM modulation of the output pattern.
If real-time output was disabled (RTPOE00 = 0) when RTPM00n = 1 and INV0 = 0, then RTP0 to RTP7 output
0.
The relationship between the settings for each bit of the control register and the real-time output is shown in
Table 10-6, and an example of the operation timing is shown in Figure 10-11.
Remark EXTR00:
1, or 4 bits
BYTE00:
INV0:
PWMCL0, PWMCH0: Bits 5 and 6 of DC control register 0 (DCCTL0)
RTPM00n:
2)
CHAPTER 10 REAL-TIME OUTPUT PORT
Bit 4 of real-time output port control register 0 (RTPC00)
Bit 5 of real-time output port control register 0 (RTPC00)
Bit 4 of DC control register 0 (DCCTL0)
Bit n (n = 0 to 7) of real-time output port mode register 0 (RTPM00)
User’s Manual U13029EJ7V1UD
1, or 4 bits
2, by setting EXTR00 and BYTE00. By setting
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