c8051f410 Silicon Laboratories, c8051f410 Datasheet - Page 158

• Manufacturer Part Number: c8051f410
• Description: 2.0 V, 32/16 Kb Flash, Smartclock, 12-bit Adc
• Manufacturer: Silicon Laboratories

C8051F410/1/2/3
158
Bits7–0: P1.[7:0]
Bits7–0: Analog Input Configuration Bits for P1.7–P1.0 (respectively).
P1.7
R/W
R/W
Bit7
Bit7
Write - Output appears on I/O pins per Crossbar Registers.
0: Logic Low Output.
1: Logic High Output (high impedance if corresponding P1MDOUT.n bit = 0).
Read - Always reads ‘0’ if selected as analog input in register P1MDIN. Directly reads Port
pin when configured as digital input.
0: P1.n pin is logic low.
1: P1.n pin is logic high.
Port pins configured as analog inputs have their weak pullup, digital driver, and digital
receiver disabled.
0: Corresponding P1.n pin is configured as an analog input. In order for the P1.n pin to be
in analog input mode, there MUST be a '1' in the Port Latch register corresponding to
that pin.
1: Corresponding P1.n pin is not configured as an analog input.
P1.6
R/W
R/W
Bit6
Bit6
SFR Definition 18.11. P1MDIN: Port1 Input Mode
P1.5
R/W
R/W
Bit5
Bit5
SFR Definition 18.10. P1: Port1
P1.4
R/W
R/W
Bit4
Bit4
Rev. 1.0
P1.3
R/W
R/W
Bit3
Bit3
P1.2
R/W
R/W
Bit2
Bit2
P1.1
R/W
R/W
Bit1
Bit1
SFR Address:
SFR Address:
P1.0
R/W
R/W
Bit0
Bit0
0x90
0xF2
Addressable
Reset Value
Reset Value
11111111
11111111
Bit