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参数资料
| 型号： | SAK-C509-LM |
| 厂商： | INFINEON TECHNOLOGIES AG |
| 元件分类： | 微控制器/微处理器 |
| 英文描述： | 8-BIT, 16 MHz, MICROCONTROLLER, PQFP100 |
| 封装： | PLASTIC, MQFP-100 |
| 文件页数： | 2/74页 |
| 文件大小： | 1607K |
| 代理商： | SAK-C509-LM |
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Semiconductor Group
9
09.96
C509-L
OWE
45
I
Oscillator Watchdog Enable
A high level on this pin enables the oscillator watchdog.
When left unconnected, this pin is pulled high by a weak
internal pullup resistor. The logic level at OWE should
not be changed during normal operation. When held at
low level the oscillator watchdog function is turned off.
During hardware power down the pullup resistor is
switched off.
P6.0 - P6.7
46-50,
54-56
46
47
48
49
I/O
Port 6
is an 8-bit quasi-bidirectional I/O port with internal pullup
resistors. Port 6 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 6 pins being
externally pulled low will source current (I IL, in the DC
characteristics) because of the internal pullup resistors.
Port 6 can also be switched into a bidirectional mode, in
which CMOS levels are provided. In this bidirectional
mode, each port 6 pin can be programmed individually
as input or output.
Port 6 also contains the external A/D converter control
pin, the receive and transmission lines for the serial port
1, and the write-FLASH control signal. The output latch
corresponding to a secondary function must be
programmed to a one (1) for that function to operate.
The secondary functions are assigned to the pins of
port 6 as follows :
P6.0
ADST External A/D converter start pin
P6.1
R
×D1 Receiver data input of serial interface 1
P6.2
T
×D1 Transmitter data output of serial
interface 1
P6.3
WRF
The WRF (write Flash) signal is active
when the programming mode is
selected. In this mode WRF becomes
active when executing external data
memory write (MOVX) instructions.
*) I = Input
O = Output
Table 1
Pin Denitions and Functions (cont’d)
Symbol
Pin Number
I/O*)
Function
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