z8f1621 ZiLOG Semiconductor, z8f1621 Datasheet - Page 76

• Manufacturer Part Number: z8f1621
• Description: High Performance 8-bit Microcontrollers
• Manufacturer: ZiLOG Semiconductor

Table 21. Port A–H Input Data Registers (PxIN)
Table 22. Port A
PS019921-0308
BITS
FIELD
RESET
R/W
ADDR
BITS
FIELD
RESET
R/W
ADDR
Port A–H Input Data Registers
Port A–H Output Data Register
POUT7
PIN7
7
7
Reading from the Port A–H Input Data registers
from the corresponding port pins. The Port A–H Input Data registers are Read-only.
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–H Output Data register
POUT[7:0]—Port Output Data
These bits contain the data to be driven out from the port pins. The values are only driven
if the corresponding pin is configured as an output and the pin is not configured for alter-
nate 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
–
H Output Data Register (PxOUT)
setting the corresponding Port Output Control register bit to 1.
POUT6
PIN6
6
6
FD2H, FD6H, FDAH, FDEH, FE2H, FE6H, FEAH, FEEH
FD3H, FD7H, FDBH, FDFH, FE3H, FE7H, FEBH, FEFH
POUT5
PIN5
5
5
POUT4
PIN4
4
4
(Table
R/W
R
X
0
22) writes output data to the pins.
POUT3
PIN3
3
3
(Table
Z8 Encore! XP
21) returns the sampled values
POUT2
PIN2
2
2
Product Specification
POUT1
PIN1
General-Purpose I/O
1
1
®
F64XX Series
POUT0
PIN0
0
0
62