ZLP32300 datasheet(45/99 Pages) ZILOG

45 / 99 page

Crimzon® ZLP32300

Product Specification

PS020823-0208

Functional Description

Do not load these registers at the time the values are to be loaded into the counter/timer

to ensure known operation. An initial count of 1 is not allowed. An initial count of 0

causes T16 to count from 0 to FFFFh to FFFEh. Transition from 0 to FFFFh is not a tim-

eout condition.

Figure 24. T16_OUT in SINGLE-PASS Mode

Figure 25. T16_OUT in MODULO-N Mode

T16 DEMODULATION Mode

You must program TC16L and TC16H to FFh. After T16 is enabled, and the first edge

(rising, falling, or both depending on CTR1 D5; D4) is detected, T16 captures HI16 and

LO16, reloads, and begins counting.

If D6 of CTR2 Is 0

When a subsequent edge (rising, falling, or both depending on CTR1, D5; D4) is detected

during counting, the current count in T16 is complemented and put into HI16 and LO16.

When data is captured, one of the edge detect status bits (CTR1, D1; D0) is set, and an

interrupt is generated if enabled (CTR2, D2). T16 is loaded with FFFFh and starts again.

Caution:

TC16H*256+TC16L Counts

“Counter Enable” Command

T16_OUT Switches to Its

Initial Value (CTR1 D0)

T16_OUT Toggles,

Timeout Interrupt

TC16H*256+TC16L

T16_OUT Toggles,

Timeout Interrupt

T16_OUT Toggles,

Timeout Interrupt

“Counter Enable” Command,

T16_OUT Switches to Its

Initial Value (CTR1 D0)

TC16_OUT

.. .

ZLP32300 Datasheet(PDF) 45 Page - Zilog, Inc.