M32CSLASH86 datasheet(303/505 Pages) RENESAS

303 / 505 page

Page 280

22. Intelligent I/O (Time Measurement Function)

)

(

Figure 22.15 Prescaler Function and Gate Function

fBT1

Base Timer

TM1jR bit(2)

G1TMj register

Internal time

measurement trigger

Prescaler(1)

(1) With the Prescaler Function

(When the G1TPRj register (j=6, 7) is set to "0216", the PR bit in the G1TMCRj register is set to "1")

fBT1

Base Timer

INPC1j pin input

Internal time

measurement trigger

IFEj bit in G1FE

Signal to match

G1POk register

Gate control signal

G1TMj register

TM1jR bit(1)

This trigger input is disabled

due to the gate function

FFFF16

000016

n-2

n-1

n+2

n+3

n+4

n+5

n+6

n+7

n+8

n+9 n+10 n+11

n+14

n+12

NOTES:

1. This applies to cycles following the first cycle the G1TPRj register decrements after the PR bit in the G1TMCRj

2. Bits in the IIO0IR to IIO4IR, IIO8IR to IIO10IR registers. See Figure 11.14 for the TM1jR bit.

(2) With the Gate Function

(The gate function is cleared by matching the base timer with the G1POk register (k=4, 5).

the GT bit in the G1TMCRj register is set to "1", the GOC bit is set to "1")

INPC1j pin input

Gate

Gate cleared

n+1

n+12 n+13

Write "0" by program

if setting to "0"

Write "0" by program if setting to "0"

NOTES:

1. Bits in the IIO0IR to IIO4IR, IIO8IR to IIO10IR registers. See Figure 11.14 for the TM1jR bit.

Value of the G1POk register

"H"

"L"

"H"

"L"

"1"

"0"

"1"

"H"

"L"

"1"

"0"

"H"

"L"

"H"

"L"

"H"

"L"

"0"

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