tmp88cs34ng TOSHIBA Semiconductor CORPORATION, tmp88cs34ng Datasheet - Page 114

• Manufacturer Part Number: tmp88cs34ng
• Description: Cmos 8-bit Microcontroller
• Manufacturer: TOSHIBA Semiconductor CORPORATION

2.10.3
2.10.4
(1) Interrupts at rising, falling, or rising/falling edge, and measurement modes
internal clock. After measurement, the 8-bit up-counter value is saved in RXCTR. Then,
the 8-bit up-counter is cleared, an INT3 request is generated, and the 8-bit up-counter
resumes counting.
request is generated and the overflow flag (OVFF) is set to “1”. Then, the 8-bit up-counter is
cleared. An overflow can be detected by reading OVFF by the interrupt processing. To
restart the 8-bit up-counter, set RCS to “1”.
Noise Elimination Time Setting
signals shorter than the fixed time can be eliminated as noise.
Operation
First set EINT and RMM. Next, set RCS to “1”; the 8-bit up-counter is counted up by the
If the 8-bit up-counter overflows (FFH) before measurement is completed, an INT3
Setting RCS to “1” zero-clears OVFF.
The remote control receive circuit has a noise canceler. By setting RNC in RXCR1, input
RNC
000
001
010
011
100
101
110
111
Table 2.10.2 Noise Elimination Time Setting (fc = 16 MHz)
(2
(2
(2
(2
(2
(2
(2
10
11
13
14
5
8
9
+ 5)/fc
+ 5)/fc
+ 5)/fc
+ 5)/fc
+ 5)/fc
+ 5)/fc
+ 5)/fc
Minimum signal pulse width
(2.31 μs)
(16.31 μs)
(32.31 μs)
(64.31 μs)
(128.3 μs)
(512.3 μs)
(1.024 ms)
−
88CS34-114
Maximum noise width to be eliminated
(2
(2
(2
(2
(2
(2
(2
10
11
2
5
6
7
8
× 7 − 1)/fc
× 7 − 1)/fc
× 7 − 1)/fc
× 7 − 1)/fc
× 7 − 1)/fc
× 7 − 1)/fc
× 7 − 1)/fc
(1.69 μs)
(13.88 μs)
(27.88 μs)
(55.88 μs)
(111.9 μs)
(447.9 μs)
(895.9 μs)
−
TMP88CS34/CP34
2007-09-12