C8051F360/1/2/3/4/5/6/7/8/9
SFR Definition 17.25. P4: Port4
SFR Page:
all pages
SFR Address: 0xB5
R
R/W
R/W
P4.5
Bit5
R/W
P4.4
Bit4
R/W
P4.3
Bit3
R/W
P4.2
Bit2
R/W
P4.1
Bit1
R/W
P4.0
Bit0
Reset Value
–
Bit7
P4.6
Bit6
01111111
Bit 7:
UNUSED. Read = 0b. Write = don’t care.
Bits 6–0: P4.[6:0]
Write - Output appears on I/O pins per Crossbar Registers.
0: Logic Low Output.
1: Logic High Output (high impedance if corresponding P4MDOUT.n bit = 0).
Read - Directly reads Port pin.
0: P4.n pin is logic low.
1: P4.n pin is logic high.
SFR Definition 17.26. P4MDOUT: Port4 Output Mode
SFR Page:
F
SFR Address: 0xAE
R
–
R/W
R/W
Bit5
R/W
Bit4
R/W
Bit3
R/W
Bit2
R/W
Bit1
R/W
Bit0
Reset Value
00000000
Bit7
Bit6
Bit 7:
UNUSED. Read = 0b. Write = don’t care.
Bits 6–0: Output Configuration Bits for P4.6-P4.0 (respectively).
0: Corresponding P4.n Output is open-drain.
1: Corresponding P4.n Output is push-pull.
200
Rev. 1.0
SILICON [ SILICON ]
