Q67120-C1045 データシートの表示（PDF） - Infineon Technologies

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Q67120-C1045

8-Bit CMOS Microcontroller

Infineon Technologies 

C509-L

Table 1

Pin Definitions and Functions

Symbol

P1.0 - P1.7

*) I = Input

O = Output

Pin Number

9-6, 1,

100-98

9

8

7

6

1

100

99

98

I/O*) Function

I/O Port 1

is an 8-bit quasi-bidirectional I/O port with internal pullup

resistors. Port 1 pins that have 1's written to them are

pulled high by the internal pullup resistors, and in that

state can be used as inputs. As inputs, port 1 pins being

externally pulled low will source current (I IL, in the DC

characteristics) because of the internal pullup resistors.

Port 1 can also be switched into a bidirectional mode, in

which CMOS levels are provided. In this bidirectional

mode, each port 1 pin can be programmed individually

as input or output.

Port 1 also contains the interrupt, timer, clock, capture

and compare pins that are used by various options. The

output latch corresponding to a secondary function must

be programmed to a one (1) for that function to operate

(except when used for the compare functions).

The secondary functions are assigned to the pins of

port 1 as follows :

P1.0 INT3 CC0 Interrupt 3 input / compare 0 output /

capture 0 input

P1.1 INT4 CC1 Interrupt 4 input / compare 1 output /

capture 1 input

P1.2 INT5 CC2 Interrupt 5 input / compare 2 output /

capture 2 input

P1.3 INT6 CC3 Interrupt 6 input / compare 3 output /

capture 3 input

P1.4 INT2 CC4 Interrupt 2 input / compare 4 output /

capture 4 input

P1.5 T2EX

Timer 2 external reload trigger input

P1.6 CLKOUT System clock output

P1.7 T2

Counter 2 input

Semiconductor Group

5

09.96

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