AT86RF401E ATMEL [ATMEL Corporation], AT86RF401E Datasheet - Page 40
AT86RF401E
Manufacturer Part Number
AT86RF401E
Description
Smart RF Wireless Data Microtransmitter
Manufacturer
ATMEL [ATMEL Corporation]
Datasheet
1.AT86RF401E.pdf
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I/O Data Out Register – IO_DATOUT
I/O Data In Register – IO_DATIN
AVR Configuration Register – AVR_CONFIG
40
Initial Value
Initial Value
Initial Value
Read/Write
Read/Write
Read/Write
AT86RF401
$31
$32
$33
Bit
Bit
Bit
R/W
R/W
R
7
–
0
7
–
0
7
–
0
• Bits[5:0]
If set to “1”, the corresponding bit (pin) IO[5:0] is configured as an output. Data may then
be written to that output by writing to the IO_DATA register. If set to “0”, the correspond-
ing bit (pin) may be either a button input (refer to the Button Detect Register, $34) used
to wake the part up or a normal digital input.
Table 19. I/O Pin Definition
• Bits[7:6]: Reserved
These bits read “0”.
• Bits[5.0]
If enabled in the IO_ENAB register and not in test mode, the data in Bits[5:0] goes to the
corresponding general-purpose output IO [5:0].
• Bits[7:6]: Reserved
This bit reads “0”.
• Bits[5:0]
These bits directly read the data from the I/O pins IO[5:0]. Writes to these bits have no
effect.
ACS1
R/W
R/W
R
6
–
0
6
–
0
6
0
IO_ENAB[n]
0
0
1
1
ACS0
IOO5
R/W
IOI5
R/W
R
5
5
0
5
0
IOO4
R/W
IOI4
R/W
TM
R
4
4
0
4
0
IO_DATOUT[n]
IOO3
IOI3
R/W
BD
R
3
R
3
0
3
0
0
1
0
1
IOO2
IOI2
R/W
BLI
R
2
R
2
0
2
0
Output Driven High
Output Driven Low
SLEEP
IOO1
IOI1
R/W
Normal Input
W
R
Button Input
1
1
0
1
0
IO[n]
1424F–RKE–12/03
IOO0
BBM
IOI0
R/W
R/W
R
0
0
0
0
0
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