Z8 Encore! XP
®
4K Series
Product Specification
47
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).
Port A–D Output Data Register
The Port A–D Output Data register (Table
controls the output data to the pins.
Table 29. Port A–D Output Data Register (PxOUT)
BITS
FIELD
RESET
R/W
ADDR
7
POUT7
0
R/W
6
POUT6
0
R/W
5
POUT5
0
R/W
4
POUT4
0
R/W
3
POUT3
0
R/W
2
POUT2
0
R/W
1
POUT1
0
R/W
0
POUT0
0
R/W
FD3H, FD7H, FDBH, FDFH
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 set-
ting the corresponding Port Output Control register bit to 1.
LED Drive Enable Register
The LED Drive Enable register (Table
activates the controlled current drive. The Port
C pin must first be enabled by setting the Alternate Function register to select the LED
function.
.
Table 30. LED Drive Enable (LEDEN)
7
0
R/W
6
0
R/W
5
0
R/W
4
0
R/W
F82H
3
0
R/W
2
0
R/W
1
0
R/W
0
0
R/W
BITS
FIELD
RESET
R/W
ADDR
LEDEN[7:0]
LEDEN[7:0]—LED Drive Enable
These bits determine which Port C pins are connected to an internal current sink.
PS022815-0206
General-Purpose I/O
ZILOG [ ZILOG, INC. ]
