M-V850E-IA4 Renesas Electronics America, M-V850E-IA4 Datasheet - Page 349

• 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

(2) Operation timing in one-shot pulse output mode
External trigger input
INTTQ0CC0 signal
INTTQ0CCb signal
TQ0CCR0 register
TQ0CCRb register
(TRGQ0 pin input)
TOQ00 pin output
TOQ0b pin output
(a) Note on rewriting TQ0CCRa register
16-bit counter
If the value of the TQ0CCRa register is rewritten to a smaller value during counting, the 16-bit counter may
overflow. When the overflow may occur, stop counting once, and then change the set value.
When the TQ0CCR0 register is rewritten from D
D
greater than D
greater than D
and compared with the count value. The counter counts up to FFFFH and then counts up again from
0000H. When the count value matches D
TOQ0b pin. When the count value matches D
the TOQ0b pin, and stops counting.
Therefore, the counter may output a pulse with a delay period or active period different from that of the
one-shot pulse that is originally expected.
Remark
TQ0CE bit
00
> D
FFFFH
0000H
01
and D
a = 0 to 3, b = 1 to 3
01
b1
b0
and less than D
and less than D
> D
CHAPTER 7 16-BIT TIMER/EVENT COUNTER Q (TMQ)
Delay
(D
b1
, if the TQ0CCRb register is rewritten when the count value of the 16-bit counter is
b0
)
Active level width
D
(D
b0
00
− D
D
b0
00
D
b0
User’s Manual U16543EJ4V0UD
b0
, each set value is reflected as soon as the register has been rewritten
D
00
+ 1)
00
and if the TQ0CCR0 register is rewritten when the count value is
b1
, the counter generates the INTTQ0CCb signal and asserts the
(10000H + D
01
D
00
, the counter generates the INTTQ0CC0 signal, deasserts
b0
to D
Delay
01
and the TQ0CCRb register from D
D
b1
00
)
Active level width
(D
D
01
b1
− D
b1
D
b1
+ 1)
D
01
D
01
Delay
(D
b1
D
)
Active level width
b1
(D
01
b0
− D
to D
D
b1
01
+ 1)
b1
where
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