M38B53M4-059FP datasheet(119/355 Pages) MITSUBISHI

119 / 355 page

38B5 Group User’s Manual

APPLICATION

2-31

2.2 Timer

RTI

(A)

Measurement result (high-order 8 bits)

(A)

Measurement result (low-order 8 bits)

TXL(address 2C16)

TXH(address 2D16)

TXH

(

TXL

(A)

FF16

FFFF16

000016

Count start of

Timer X

T1 value: Valid

CNTR2

FFFF16

000016

CNTR2

Timer 2 interrupt process routine (Note 1)

CLT (Note 2)

CLD (Note 3)

Push registers to stack

Pop registers

Notes 2: When using Index X mode flag (T)

3: When using Decimal mode flag (D)

•Pushing registers used in interrupt process routine

•Popping registers pushed to stack

•Count value read and storing it to RAM

Note 1: The first value becomes invalid depending on start timing of Time X count

shown by the following figure.

Process it by software as necessary.

[ Example 1] • Start Timer X count when CNTR2 input level is “L”.

(CNTR2 input level can be checked by reading the contents of sharing port P61 register.

Timer 2 interrupt

T2 value: Valid

Timer 2 interrupt

[ Example 2] • Start Timer X count when CNTR2 input level is “H”.

Invalidate the first Timer 2 interrupt after start of Timer X count.

Count start of

Timer X

T1 value: Invalid

Timer 2 interruptTimer 2 interrupt

T2 value: Valid

M38B53M4-059FP Datasheet(PDF) 119 Page - Mitsubishi Electric Semiconductor

M38B53M4-059FP Datasheet(HTML) 119 Page - Mitsubishi Electric Semiconductor

Html Pages

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 ...More

Datasheet Download

Link URL