Z8F1680SH020SG Datasheet, PDF (91/412 Pages) Zilog, Inc. – High-Performance 8-Bit Microcontrollers

Z8 Encore! XP^® F1680 Series
Product Specification
66
7.11.12. Port A–E Output Data Register
The Port A–E Output Data Register, shown in Table 32, controls the output data to the
pins.
Table 32. Port A–E Output Data Register (PxOUT)
Bits
Field
Reset
R/W
Address
7
POUT7
0
R/W
6
POUT6
0
R/W
5
4
3
2
POUT5 POUT4 POUT3 POUT2
0
0
0
0
R/W
R/W
R/W
R/W
FD3H, FD7H, FDBH, FDFH, FE3H
1
POUT1
0
R/W
0
POUT0
0
R/W
Bit
[7:0]
POUT
Description
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.
Bits
Field
Reset
R/W
Address
7.11.13. LED Drive Enable Register
The LED Drive Enable Register, shown in Table 33, 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 33. LED Drive Enable (LEDEN)
7
6
5
4
3
2
1
0
LEDEN[7:0]
0
0
0
0
0
0
0
0
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
F82H
Bit
[7:0]
LEDEN
Description
LED Drive Enable
These bits determine which Port C pins are connected to an internal current sink.
0 = Tristate the Port C pin.
1 = Connect controlled current synch to Port C pin.
PS025015-1212
PRELIMINARY
General-Purpose Input/Output