M32C83T datasheet(293/527 Pages) RENESAS

293 / 527 page

Page 270

21. Intelligent I/O (Time Measurement Function)

)

(

Table 21.5 Pin Settings for Time Measurement Function

Pin(2)

Bit and Setting

PS1, PS2, PS5, PS8, PS9

PD7, PD8, PD11, PD14, PD15

IPS Register

Registers

P74/INPC11

PS1_4 = 0

PD7_4 = 0

IPS1 = 0

P75/INPC12

PS1_5 = 0

PD7_5 = 0

P76/INPC00

PS1_6 = 0

PD7_6 = 0

IPS0 = 0

P77/INPC01

PS1_7 = 0

PD7_7 = 0

P80/INPC02

PS2_0 = 0

PD8_0 = 0

P111/INPC11(1)

PS5_1 = 0

PD11_1 = 0

IPS1 =1

P112/INPC12(1)

PS5_2 = 0

PD11_2 = 0

P142/INPC16(1)

PS8_2 = 0

PD14_2 = 0

P143/INPC17(1)

PS8_3 = 0

PD14_3 = 0

P150/INPC00(1)

PS9_0 = 0

PD15_0 = 0

IPS0 = 1, IPS2 = 0

P151/INPC01(1)

PS9_1 = 0

PD15_1 = 0

P152/INPC02(1)

PD15_2 = 0

P153/INPC03(1)

PD15_3 = 0

IPS2 = 0

P154/INPC04(1)

PS9_4 = 0

PD15_4 = 0

P155/INPC05(1)

PS9_5 = 0

PD15_5 = 0

P156/INPC06(1)

PD15_6 = 0

P157/INPC07(1)

PD15_7 = 0

NOTES:

1. This port is provided in the 144-pin package only.

2. Apply trigger to INPC0j pin (j=0 to 7) when the CAS bit in the GiBCR register is set to "1" (32-bit time measurement

function). Trigger input to INPC1k pin (k=1, 2, 6, 7) is invalid.

Table 21.6 Time Measurement Function Associated Register Settings

Bit

Function

GiTMCRj

CTS1 to CTS0

Select a time measurement trigger

DF1 to DF0

Select the digital filter function

GT, GOC, GSC

Select the gate function

Select the prescaler function

GiTPRk

Setting value of the prescaler

GiFS

FSCj

Set to "1" (time measurement function)

GiFE

IFEj

Set to "1" (channel j function enabled)

i = 0 to 1;

j = 0 to 7;

k = 6, 7

Bit configurations and functions vary with channels and groups used.

Registers associated with the time measurement function must be set after setting registers associated with the base timer.

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