z8f083a ZiLOG Semiconductor, z8f083a Datasheet - Page 62

• Manufacturer Part Number: z8f083a
• Description: High-performance 8-bit Microcontrollers
• Manufacturer: ZiLOG Semiconductor

Table 26. Port A–C Input Data Registers (PxIN)
Table 27. Port A–D Output Data Register (PxOUT)
BITS
FIELD
RESET
R/W
ADDR
BITS
FIELD
RESET
R/W
ADDR
PS026308-1207
Port A–C Input Data Registers
Port A–D Output Data Register
POUT7
PIN7
R/W
R
X
7
0
7
Reading from the Port A–C input data registers, returns the sampled values from the
corresponding port pins. See
read-only. The value returned for any unused ports is 0. Unused ports include those
missing on the 8- and 28-pin packages, as well as those missing on the ADC-enabled 28-
pin packages.
PIN[7:0]—Port Input Data
Sampled data from the corresponding port pin input.
0 = Input data is logical 0 (Low).
1 = Input data is logical 1 (High).
The Port A–D output data register controls the output data to the pins. See
POUT[7:0]—Port output data
These bits contain the data to be driven to the port pins. The values are only driven if the
corresponding pin is configured as an output and the pin is not configured for alternate
function operation.
0 = Drive a logical 0 (Low).
1= Drive a logical 1 (High). High value is not driven if the drain has been disabled by
setting the corresponding port output control register bit to 1.
POUT6
PIN6
R/W
X
R
6
6
0
POUT5
PIN5
R/W
R
X
5
5
0
FD3H, FD7H, FDBH, FDFH
Table 26
FD2H, FD6H, FDAH
POUT4
PIN4
R/W
X
R
4
0
4
on page 50. The Port A–C input data registers are
POUT3
PIN3
R/W
R
X
3
3
0
POUT2
PIN2
R/W
Z8 Encore!
X
R
2
0
2
General Purpose Input/Output
Product Specification
POUT1
PIN1
R/W
R
X
1
1
0
®
F083A Series
Table
POUT0
27.
PIN0
R/W
X
R
0
0
0
50