C508_01 Datasheet, PDF (18/267 Pages) Infineon Technologies AG – 8-Bit CMOS Microcontroller

C508
Introduction
Table 1-1 Pin Definitions and Functions (cont’d)
Symbol
Pin Numbers
I/O¹⁾ Function
P-MQFP-64 P-SDIP-64
P5.0-P5.7 22 - 15
30 - 23
I/O Port 5
is a an 8-bit quasi-bidirectional I/O port with internal
pull-up transistors. Port 5 pins that have 1’s written
to them are pulled high by the internal pull-up
resistors, and in that state can be used as inputs. As
inputs, Port 5 pins being externally pulled low will
source current (I_IL, in the DC characteristics)
because of the internal pull-up transistors.
As secondary functions, Port 5 contains the
interrupt and Timer 2 capture/compare pins. They
are assigned to the pins as follows:
22
30
21
29
20
28
19
27
18
17
16
15
V_SS
V_DD
V_DDA
V_SSA
V_AREF
V_AGND
24, 43, 55
23, 44, 56
3
4
13
14
1) _{I = Input}
O = Output
26
25
24
23
32, 51, 63 –
31, 52, 64 –
11
–
12
–
21
–
22
–
P5.0/T2CC0/INT3 T2 Compare/Capture output 0/
Interrupt 3 input
P5.1/T2CC1/INT4 T2 Compare/Capture output 1/
Interrupt 4 input
P5.2/T2CC2/INT5 T2 Compare/Capture output 2/
Interrupt 5 input
P5.3/T2CC3/INT6 T2 Compare/Capture output 3/
Interrupt 6 input
P5.4/INT2
Interrupt 2 input
P5.5/INT9
Interrupt 9 input
P5.6/INT8
Interrupt 8 input
P5.7/INT7
Interrupt 7 input
Ground (0 V)
Power Supply (+5 V)
Analog Power Supply (+5 V)
Analog Ground (0 V)
Reference Voltage for the A/D Converter.
Reference Ground for the A/D Converter.
User’s Manual
1-10
2001-05