TMP88CS38 datasheet(73/226 Pages) TOSHIBA

Part #	TMP88CS38

Description	8-bit single chip microcomputer

PDF	226 Pages

Scroll/Zoom	100%

Manufacturer	TOSHIBA [Toshiba Semiconductor]

Direct Link	http://www.semicon.toshiba.co.jp/eng

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TMP88CS38/CM38A/CP38A

2007-09-12

88CS38-73

(3) Window mode

In this mode, counting up performed on the rising edge of an internal clock during

TC2 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.

The maximum applied frequency (TC2 input) must be considerably slower than the

selected internal clock.

Example: Generates an interrupt, inputting “H” level pulse width of 120 ms or more. (at fc

= 16.0 MHz, DV1CK = 1)

LDW

(TC2DR), 0075H

;

Sets TC2DR (120 ms

÷ 214/fc = 0075H)

SET

(EIRH). 6

;

Enables INTTC2 interrupt

(TC2CR), 00000101B

;

Selects TC2 source clock

(TC2CR), 00100101B

;

Starts TC2

Figure 2.6.5 Window Mode Timing Chart

− 3

TC2DR

INTTC2 interrupt

Internal clock

Up counter

Match detect

Counter clear

TC2 pin input

− 2

− 1

TMP88CS38 Datasheet(PDF) 73 Page - Toshiba Semiconductor