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參數(shù)資料
| 型號： | C505CA-L |
| 廠商： | INFINEON TECHNOLOGIES AG |
| 元件分類： | 8位微控制器 |
| 英文描述： | 8-bit Microcontroller with 2/4/8K Bytes In-System Programmable Flash |
| 中文描述： | 8位微控制器與2/4/8K字節(jié)在系統(tǒng)可編程閃存 |
| 文件頁數(shù)： | 10/88頁 |
| 文件大小： | 1224K |
| 代理商： | C505CA-L |
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C505/C505C/C505A/C505CA
Data Sheet
6
12.00
Table 2
Pin Definitions and Functions
Symbol
Pin Number
I/O
*)
Function
P1.0-P1.7
40-44,1-3
40
41
42
43
44
1
2
3
I/O
Port 1
is an 8-bit quasi-bidirectional port with internal pull-up
arrangement. Port 1 pins can be used for digital input/output
or as analog inputs of the A/D converter. Port 1 pins that
have 1
’
s written to them are pulled high by internal pull-up
transistors 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 transistors. Port 1 pins are assigned to be
used as analog inputs via the register P1ANA.
As secondary digital functions, port 1 contains the interrupt,
timer, clock, capture and compare pins. The output latch
corresponding to a secondary function must be
programmed to a one (1) for that function to operate (except
for compare functions). The secondary functions are
assigned to the pins of port 1 as follows:
P1.0 / AN0 / INT3 / CC0
Analog input channel 0
interrupt 3 input /
capture/compare channel 0 I/O
P1.1 / AN1 / INT4 / CC1 Analog input channel 1/
interrupt 4 input /
capture/compare channel 1 I/O
Analog input channel 2 /
interrupt 5 input /
capture/compare channel 2 I/O
P1.2 / AN2 / INT5 / CC2
P1.3 / AN3 / INT6 / CC3 Analog input channel 3
interrupt 6 input /
capture/compare channel 3 I/O
Analog input channel 4
Analog input channel 5 / Timer 2
external reload / trigger input
Analog input channel 6 /
system clock output
Analog input channel 7 /
counter 2 input
P1.4 / AN4
P1.5 / AN5 / T2EX
P1.6 / AN6 / CLKOUT
P1.7 / AN7 / T2
Port 1 is used for the low-order address byte during program
verification of the C505 ROM versions (i.e. C505(C)(A)-2R/
C505A-4R/C505CA-4R).
*) I = Input
O= Output
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