M32C83T datasheet(301/527 Pages) RENESAS

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21. Intelligent I/O (Waveform Generation Function)

)

(

21.3.2 Phase-Delayed Waveform Output Mode (Group 0 to 3)

Output signal level of the OUTCij pin (i=0 to 3; j=0 to 7) is inversed every time the value of the base timer

matches that of the GiPOj register. Table 21.10 lists specifications of phase-delayed waveform mode.

Figure 21.25 shows an example of phase-delayed waveform mode operation.

Table 21.10 Phase-delayed Waveform Output Mode Specifications

Item

Specification

Output Waveform

• Free-running operation

(the RST2 to RST0 bits in the GiBCR1 register (i=0 to 3) are set to "0002")

Cycle

"H" and "L" width

Setting value of the GiPOj (j=0 to 7) register is 000016 to FFFF16

• The base timer is reset by matching the base timer with the GiPO0 register

(the RST1 bit is set to "1", and the RST0 and RST2 bit are set to "0")

Cycle

"H" and "L" width

n : setting value of the GiPO0 register, 000116 to FFFD16

Setting value of the GiPOj (j=1 to 7) register is 000016 to FFFF16

If GiPOj register

≥ n+2, the output level is not inversed

Waveform Output Start Condition(1) The IFEj bit (j=0 to 7) in the GiFE register is set to "1" (channel j function

enabled)

Waveform Output Stop Condition

The IFEj bit is set to "0" (channel j function disabled)

Interrupt Request

The POijR bit in the interrupt request register is set to "1" (interrupt requested)

when the value of the base timer matches that of the GiPOj register. (See

Figure 10.14)

OUTC1j Pin

Pulse signal output pin

Selectable Function

• Default value set function : Set starting waveform output level

• Inversed output function : Waveform output level is inversed and output from

the OUTCij pin

• Cascaded connection function: Connect group 0 and group 1 to operate as a

32-bit base timer

NOTES:

1. Set the FSCj bit in the GiFS register to "0" (waveform generation function selected) when using channels shared by

both time measurement function and waveform generation function

2. OUTC00, OUTC01, OUTC04, OUTC05, OUTC10 to OUTC17, OUTC20 to OUTC27, and OUTC30 to OUTC37 pins

(OUTC10 to OUTC17 pins when using group 0 and group 1 cascaded connection)

65536 x 2

fBTi

65536

fBTi

2(n+2)

fBTi

n+2

fBTi

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