UT80C196 datasheet(16/42 Pages) AEROFLEX

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TUQ

P1.0

---

Port 1 Pin 0. A quasi-bidirectional port pin that is read and writ-

ten at location 0Fh of HWindow 0.

TUQ

P1.1

---

Port 1 Pin 1. A quasi-bidirectional port pin that is read and writ-

ten at location 0Fh of HWindow 0.

TUQ

P1.2

---

Port 1 Pin 2. A quasi-bidirectional port pin that is read and writ-

ten at location 0Fh of HWindow 0.

TUQ

P1.3

---

Port 1 Pin 3. A quasi-bidirectional port pin that is read and writ-

ten at location 0Fh of HWindow 0.

Setting IOC3.2 = 0 enables the P1.3 function of pin 22.

TUO

PWM1

---

Pulse Width Modulator (PWM) Output 1. The output signal

will be a waveform whose duty cycle is programmed by the

PWM1_CONTROL register, and the frequency is selected by

IOC2.2.

Setting IOC3.2 = 1 enables the PWM1 function of pin 22.

TUQ

P1.4

---

Port 1 Pin 4. A quasi-bidirectional port pin that is read and writ-

ten at location 0Fh of HWindow 0.

Setting IOC3.3 = 0 enables the P1.4 function of pin 23.

TUO

PWM2

---

Pulse Width Modulator (PWM) Output 2. The output signal

will be a waveform whose duty cycle is programmed by the

PWM2_CONTROL register, and the frequency is selected by

IOC2.2.

Setting IOC3.3 = 1 enables the PWM2 function of pin 23.

HSI.0

---

High Speed Input Module, input pin 0. Unless masked, a rising

edge on this input will generate the HSI.0 Pin interrupt (INT04,

2008h). Assert the HSI.0 pin for at least 2 state times to ensure

acknowledgment by the interrupt controller.

Setting IOC0.0 = 1 enables pin 24 as an HSI input, and allows

events on this pin to be loaded into the HSI FIFO.

T2RST

High

Timer 2 Reset. A rising edge on the T2RST pin resets Timer 2.

To enable the T2RST function of pin 24, set IOC0.3 = 1 and

IOC0.5 = 1.

Table 10: 68-lead Flat Pack Pin Descriptions

QFP Pin#

I/O

Name

Active

Description

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