ST10R272L STMicroelectronics, ST10R272L Datasheet - Page 9

• Manufacturer Part Number: ST10R272L
• Description: 16-BIT Romless MCU WITH MAC UNIT
• Manufacturer: STMicroelectronics

Specifications of ST10R272L

• Cpu Frequency: 0 to 50 MHz
• Power: 3.3 Volt +/-0.3V

RSTIN
RSTOUT
NMI
P6.0-
P6.7
79
80
81
82-89
82
...
86
87
88
89
I
O
I
I/O
O
...
O
I
I/O
O
5T
5T
5S
5T
5T
...
5T
5T
5T
5T
Table 1 Pin definitions
Reset Input with Schmitt-Trigger characteristics. Resets the
device when a low level is applied for a specified duration while
the oscillator is running. An internal pullup resistor enables
power-on reset using only a capacitor connected to
a bonding option, the RSTIN pin can also be pulled-down for
512 internal clock cycles for hardware, software or watchdog
timer triggered resets
Internal Reset Indication Output. This pin is set to a low level
when the part is executes hardware-, software- or watchdog
timer reset. RSTOUT remains low until the EINIT (end of ini-
tialization) instruction is executed.
Non-Maskable Interrupt Input. A high to low transition at this
pin causes the CPU to vector to the NMI trap routine.
If it is not used, NMI should be pulled high externally.
An 8-bit bidirectional I/O port. Port 6 is bit-wise programmable
for input or output via direction bits. For a pin configured as
input, the output driver is put into high-impedance state. Port 6
outputs can be configured as push/pull or open drain drivers.
The following Port 6 pins have alternate functions:
P6.0
...
P6.4
P6.5
P6.6
P6.7
CS0
...
CS4
HOLD
HLDA
BREQ
Chip Select 0 Output
...
Chip Select 4 Output
External Master Hold Request Input
(Master mode: O, Slave mode: I)
Hold Acknowledge Output
Bus Request Output
ST10R272L - PIN DESCRIPTION
V
SS
.
With
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