ST10F280_12 Datasheet, PDF (23/239 Pages) STMicroelectronics – 16-bit MCU with MAC unit, 512 Kbyte Flash memory and 18 Kbyte RAM

ST10F280
Ball data
Table 1. Ball description (continued)
Symbol
Ball
number
Type
Function
PORT1 consists of the two 8-bit bidirectional I/O ports P1L and
P1H. It is bit-wise programmable for input or output via direction
bits. For a pin configured as input, the output driver is put into high-
I/O 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 also serve for alternate functions:
C11 I/O P1L.0
B11 I/O P1L.1
D10
C10
PORT1:
B10
P1L.0 - P1L.7, A10
P1H.0 - P1H.7 _D9
I/O P1L.2
I/O P1L.3
I/O P1L.4
I/O P1L.5
I/O P1L.6
C9 I/O P1L.7
C8 I/O P1H.0
D8 I/O P1H.1
A7 I/O P1H.2
B7 I/O P1H.3
C7
I P1H.4 CC24IO CAPCOM2: CC24 Capture Input
D7
I P1H.5 CC25IO CAPCOM2: CC25 Capture Input
C5
I P1H.6 CC26IO CAPCOM2: CC26 Capture Input
C6
I P1H.7 CC27IO CAPCOM2: CC27 Capture Input
XTAL1
XTAL2
RSTIN
RSTOUT
A5
I
XTAL1: Input to the oscillator amplifier and input to the internal
clock generator
XTAL2: Output of the oscillator amplifier circuit.
A6
O ^{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.
Reset Input with Schmitt-Trigger characteristics. A low level at this
pin for a specified duration while the oscillator is running resets the
ST10F280. An internal pull-up resistor permits power-on reset
A3
I using only a capacitor connected to V_SS.
In bidirectional reset mode (enabled by setting bit BDRSTEN in
SYSCON register), the RSTIN line is pulled low for the duration of
the internal reset sequence.
Internal Reset Indication Output. This pin is set to a low level when
B4
O
the part is executing either a hardware, a software or a watchdog
timer reset. RSTOUT remains low until the EINIT (end of
initialization) instruction is executed.
Doc ID 8673 Rev. 3
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