tmp88cs34ng TOSHIBA Semiconductor CORPORATION, tmp88cs34ng Datasheet - Page 73

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

TC2 pin input
TC2DR
INTTC2 interrupt
Internal clock
Up-counter
(3) Window mode
external pin input (window pulse) is “H” level. The contents of TC2DR are compared with
the contents of up-counter. If a match found, an INTTC2 interrupt is generated, and the
up-counter is cleared.
selected internal clock.
Example: Generates an interrupt, inputting “H” level pulse width of 120 ms or more.
In this mode, counting up performed on the rising edge of an internal clock during TC2
The maximum applied frequency (TC2 input) must be considerably slower than the
(at fc = 16.0 MHz, DV1CK = 1)
LDW
DI
SET
EI
LD
LD
n
Figure 2.6.5 Window Mode Timing Chart
(TC2DR), 0075H
(EIRH). 6
(TC2CR), 00000101B
(TC2CR), 00100101B
0
1
88CS34-73
2
n − 3
;
;
;
;
n − 2
Match detect
Sets TC2DR (120 ms ÷ 2
Enables INTTC2 interrupt
Selects TC2 source clock
Starts TC2
n − 1
n
0
Counter clear
1
TMP88CS34/CP34
2
3
14
/fc = 0075H)
2007-09-12