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ST10F269Z2T6 Folha de dados(PDF) 11 Page - STMicroelectronics

Nome de Peças ST10F269Z2T6
Descrição Electrónicos  16-BIT MCU WITH MAC UNIT, 128K to 256K BYTE FLASH MEMORY AND 12K BYTE RAM
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Fabricante Electrônico  STMICROELECTRONICS [STMicroelectronics]
Página de início  http://www.st.com
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ST10F269
2 - PIN DATA
11/184
P0L.0 - P0L.7,
P0H.0
P0H.1 - P0H.7
100-107,
108,
111-117
I/O
Two 8-bit bidirectional I/O ports P0L and P0H, bit-wise programmable for input or
output via direction bit. Programming an I/O pin as input forces the corresponding
output driver to high impedance state.
In case of an external bus configuration, PORT0 serves as the address (A) and as
the address / data (AD) bus in multiplexed bus modes and as the data (D) bus in
demultiplexed bus modes.
Demultiplexed bus modes
Data Path Width:
8-bit
16-bit
P0L.0 – P0L.7:
D0 – D7
D0 - D7
P0H.0 – P0H.7
I/O
D8 - D15
Multiplexed bus modes
Data Path Width:
8-bit
16-bit
P0L.0 – P0L.7:
AD0 – AD7 AD0 - AD7
P0H.0 – P0H.7
A8 – A15
AD8 - AD15
P1L.0 - P1L.7
P1H.0 - P1H.7
118-125
128-135
I/O
Two 8-bit bidirectional I/O ports P1L and P1H, bit-wise programmable for input or
output via direction bit. Programming an I/O pin as input forces the corresponding
output driver to high impedance state. PORT1 is used as the 16-bit address bus (A)
in demultiplexed bus modes and also after switching from a demultiplexed bus mode
to a multiplexed bus mode.
The following PORT1 pins have alternate functions:
132
I
P1H.4
CC24IO
CAPCOM2: CC24 Capture Input
133
I
P1H.5
CC25IO
CAPCOM2: CC25 Capture Input
134
I
P1H.6
CC26IO
CAPCOM2: CC26 Capture Input
135
I
P1H.7
CC27IO
CAPCOM2: CC27 Capture Input
XTAL1
138
I
XTAL1
Oscillator amplifier and/or external clock input.
XTAL2
137
O
XTAL2
Oscillator amplifier circuit output.
To clock the device from an external source, drive XTAL1 while leaving XTAL2
unconnected. Minimum and maximum high / low and rise / fall times specified in the
AC Characteristics must be observed.
RSTIN
140
I
Reset Input with Schmitt-Trigger characteristics. A low level at this pin for a specified
duration while the oscillator is running resets the ST10F269. An internal pull-up
resistor permits power-on reset using only a capacitor connected to VSS. In bidirec-
tional reset mode (enabled by setting bit BDRSTEN in SYSCON register), the
RSTIN line is pulled low for the duration of the internal reset sequence.
RSTOUT
141
O
Internal Reset Indication Output. This pin is driven to a low level during hardware,
software or watchdog timer reset.
RSTOUT remains low until the EINIT (end of ini-
tialization) instruction is executed.
NMI
142
I
Non-Maskable Interrupt Input. A high to low transition at this pin causes the CPU to
vector to the NMI trap routine. If bit PWDCFG = ‘0’ in SYSCON register, when the
PWRDN (power down) instruction is executed, the NMI pin must be low in order to
force the ST10F269 to go into power down mode. If NMI is high and PWDCFG =’0’,
when PWRDN is executed, the part will continue to run in normal mode.
If not used, pin NMI should be pulled high externally.
VAREF
37
-
A/D converter reference voltage.
VAGND
38
-
A/D converter reference ground.
RPD
84
-
Timing pin for the return from interruptible powerdown mode and synchronous /
asynchronous reset selection.
Symbol
Pin
Type
Function


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