M-V850E-IA4 Renesas Electronics America, M-V850E-IA4 Datasheet - Page 378

• Manufacturer Part Number: M-V850E-IA4
• Description: KIT EVAL V850E IA4 UPD70F3186
• Manufacturer: Renesas Electronics America

Specifications of M-V850E-IA4

• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

376
Note The TQ0OVF0 and TQ0OVF1 flags are set on the internal RAM by software.
<1> Read the TQ0CCR0 register (setting of the default value of the TIQ00 pin input).
<2> Read the TQ0CCR1 register (setting of the default value of the TIQ01 pin input).
<3> An overflow occurs. Nothing is done by software.
<4> Read the TQ0CCR0 register.
<5> Read the TQ0CCR1 register.
<6> Same as <3>
TQ0CCR0 register
TQ0CCR1 register
INTTQ0OV signal
TQ0OVF0 flag
TQ0OVF1 flag
Example when two capture registers are used (without using overflow interrupt)
Read the overflow flag. If the overflow flag is 1, set only the TQ0OVF1 flag to 1, and clear the
overflow flag to 0.
Because the overflow flag is 1, the pulse width can be calculated by (10000H + D
Read the overflow flag. Because the overflow flag is cleared in <4>, 0 is read.
Read the TQ0OVF1 flag. If the TQ0OVF1 flag is 1, clear it to 0.
Because the TQ0OVF1 flag is 1, the pulse width can be calculated by (10000H + D
(correct).
TIQ00 pin input
TIQ01 pin input
16-bit counter
TQ0OVF bit
TQ0CE bit
FFFFH
0000H
Note
Note
CHAPTER 7 16-BIT TIMER/EVENT COUNTER Q (TMQ)
D
00
User’s Manual U16543EJ4V0UD
<1>
D
10
<2>
D
00
<3>
D
D
01
10
<4>
D
11
<5> <6>
D
01
D
11
01
− D
00
).
11
− D
10
(2/2)
)