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參數(shù)資料
| 型號(hào)： | C505-LM |
| 廠商： | SIEMENS AG |
| 元件分類： | 8位微控制器 |
| 英文描述： | 8-Bit CMOS Microcontroller |
| 中文描述： | 8位CMOS微控制器 |
| 文件頁(yè)數(shù)： | 8/85頁(yè) |
| 文件大?。?/td> | 335K |
| 代理商： | C505-LM |
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Semiconductor Group
8
1997-12-01
C505 / C505C
C505A / C505CA
Table 3
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 ar-
rangement. 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 in-
puts, port 1 pins being externally pulled low will source cur-
rent (
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 pro-
grammed 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 4 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 C505-2R and C505C-2R.
*) I = Input
O= Output
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| C505A-4EM | 8-Bit CMOS Microcontroller |
| C505C-LM | 8-Bit CMOS Microcontroller |
| C505CA-2R | 8-bit Microcontroller with 2/4/8K Bytes In-System Programmable Flash |
| C505CA-4E | 8-bit Microcontroller with 2/4/8K Bytes In-System Programmable Flash |
| C505CA-4R | 8-bit Microcontroller with 2/4/8K Bytes In-System Programmable Flash |
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