DV164136 Microchip Technology, DV164136 Datasheet - Page 156

• Manufacturer Part Number: DV164136
• Description: DEVELOPMENT KIT FOR PIC18
• Manufacturer: Microchip Technology
• Series: PIC®r
• Type: MCUr

Specifications of DV164136

• Contents: Board, Cables, CDs, PICkit™ 3 Programmer, Power Supply
• Processor To Be Evaluated: PIC18F8722, PIC18F87J11
• Interface Type: RS-232, USB
• Operating Supply Voltage: 3.3 V, 5 V
• Silicon Manufacturer: Microchip
• Core Architecture: PIC
• Core Sub-architecture: PIC18
• Silicon Core Number: PIC18F
• Silicon Family Name: PIC18F8xxx
• Kit Contents: PIC18 Exp Brd PICkit 3 Cable CD PSU
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• For Use With/related Products: PIC18F8722, PIC18F87J11
• Lead Free Status / Rohs Status: Lead free / RoHS Compliant

PIC18F8722 FAMILY
11.8
PORTH is an 8-bit wide, bidirectional I/O port. The
corresponding Data Direction register is TRISH. Set-
ting a TRISH bit (= 1) will make the corresponding
PORTH pin an input (i.e., put the corresponding output
driver in a high-impedance mode). Clearing a TRISH
bit (= 0) will make the corresponding PORTH pin an
output (i.e., put the contents of the output latch on the
selected pin).
The Data Latch register (LATH) is also memory
mapped. Read-modify-write operations on the LATH
register, read and write the latched output value for
PORTH.
All pins on PORTH are implemented with Schmitt
Trigger input buffers. Each pin is individually
configurable as an input or output.
DS39646C-page 154
Note:
Note:
PORTH, LATH and
TRISH Registers
PORTH
PIC18F8527/8622/8627/8722 devices.
On a Power-on Reset, these pins are
configured as digital inputs.
is
available
only
on
When the external memory interface is enabled, four of
the PORTH pins function as the high-order address
lines for the interface. The address output from the
interface takes priority over other digital I/O. The
corresponding TRISH bits are also overridden.
EXAMPLE 11-8:
CLRF
CLRF
MOVLW
MOVWF
PORTH
LATH
0CFh
TRISH
INITIALIZING PORTH
; Initialize PORTH by
; clearing output
; data latches
; Alternate method
; to clear output
; data latches
; Value used to
; initialize data
; direction
; Set RH3:RH0 as inputs
; RH5:RH4 as outputs
; RH7:RH6 as inputs
© 2008 Microchip Technology Inc.