ATA5771-DK1 Atmel, ATA5771-DK1 Datasheet - Page 60

• Manufacturer Part Number: ATA5771-DK1
• Description: BOARD XMITTER FOR ATA5771 868MHZ
• Manufacturer: Atmel
• Type: Transmitterr

Specifications of ATA5771-DK1

• Frequency: 868MHz
• Maximum Frequency: 868 MHz
• Supply Voltage (max): 4 V
• Supply Voltage (min): 2 V
• Supply Current: 8.5 mA
• Product: RF Development Tools
• For Use With/related Products: ATA5771
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

4.13.2.5
4.14
4.14.1
60
I/O Ports
Atmel ATA5771/73/74
Overview
PCMSK0 – Pin Change Mask Register 0
• Bits 7..0 – PCINT7..0: Pin Change Enable Mask 7..0
Each PCINT7..0 bit selects whether pin change interrupt is enabled on the corresponding I/O
pin. If PCINT7..0 is set and the PCIE0 bit in GIMSK is set, pin change interrupt is enabled on
the corresponding I/O pin. If PCINT7..0 is cleared, pin change interrupt on the corresponding
I/O pin is disabled.
All AVR
ports. This means that the direction of one port pin can be changed without unintentionally
changing the direction of any other pin with the SBI and CBI instructions. The same applies
when changing drive value (if configured as output) or enabling/disabling of pull-up resistors (if
configured as input). Each output buffer has symmetrical drive characteristics with both high
sink and source capability. The pin driver is strong enough to drive LED displays directly. All
port pins have individually selectable pull-up resistors with a supply-voltage invariant resis-
tance. All I/O pins have protection diodes to both V
See
Figure 4-21. I/O Pin Equivalent Schematic
All registers and bit references in this section are written in general form. A lower case “x” rep-
resents the numbering letter for the port, and a lower case “n” represents the bit number.
However, when using the register or bit defines in a program, the precise form must be used.
For example, PORTB3 for bit no. 3 in Port B, here documented generally as PORTxn. The
physical I/O Registers and bit locations are listed in
Bit
0x12 (0x32)
Read/Write
Initial Value
Section 8. “Electrical Characteristics” on page 186
®
ports have true Read-Modify-Write functionality when used as general digital I/O
Pxn
PCINT7
R/W
7
0
PCINT6
R/W
6
0
PCINT5
C
R/W
5
0
pin
PCINT4
R/W
4
0
PCINT3
CC
R/W
Table
3
0
and Ground as indicated in
for a complete list of parameters.
"General Digital I/O" for
4-29.
PCINT2
R/W
2
0
See Figure
R
Details
pu
PCINT1
R/W
1
0
Logic
PCINT0
R/W
0
0
9137E–RKE–12/10
Figure
PCMSK0
4-21.