13 dpds0 - port driver strength register 0, Atmega128rfa1 – Rainbow Electronics ATmega128RFA1 User Manual
Page 174
174
8266A-MCU Wireless-12/09
ATmega128RFA1
12.6.13 DPDS0 – Port Driver Strength Register 0
Bit
7
6
5
4
3
2
1
0
NA ($136)
PFDRV1 PFDRV0 PEDRV1 PEDRV0 PDDRV1 PDDRV0 PBDRV1 PBDRV0
DPDS0
Read/Write
RW
RW
RW
RW
RW
RW
RW
RW
Initial Value
0
0
0
0
0
0
0
0
The output driver strength can be set individually for each digital I/O port. The following
tables show output current levels for a typical supply voltage of DEVDD = 3.3V. Refer to
section "Electrical Characteristics" for details.
•
Bit 7:6 – PFDRV1:0 - Driver Strength Port F
Table 12-7 PFDRV Register Bits
Register Bits
Value
Description
0
2 mA
1
4 mA
2
6 mA
PFDRV1:0
3
8 mA
•
Bit 5:4 – PEDRV1:0 - Driver Strength Port E
Table 12-8 PEDRV Register Bits
Register Bits
Value
Description
0
2 mA
1
4 mA
2
6 mA
PEDRV1:0
3
8 mA
•
Bit 3:2 – PDDRV1:0 - Driver Strength Port D
Table 12-9 PDDRV Register Bits
Register Bits
Value
Description
0
2 mA
1
4 mA
2
6 mA
PDDRV1:0
3
8 mA
•
Bit 1:0 – PBDRV1:0 - Driver Strength Port B
Table 12-10 PBDRV Register Bits
Register Bits
Value
Description
0
2 mA
1
4 mA
2
6 mA
PBDRV1:0
3
8 mA