pic32mx320f064h Microchip Technology Inc., pic32mx320f064h Datasheet - Page 245

• Manufacturer Part Number: pic32mx320f064h
• Description: 64/100-pin General Purpose, 32-bit Flash Microcontrollers
• Manufacturer: Microchip Technology Inc.

12.0
The general purpose I/O pins can be considered the
simplest of peripherals. They allow the PIC
monitor and control other devices. To add flexibility and
functionality, some pins are multiplexed with alternate
function(s). These functions depend on which periph-
eral features are on the device. In general, when a
peripheral is functioning, that pin may not be used as a
general purpose I/O pin.
FIGURE 12-1:
© 2007 Microchip Technology Inc.
Note:
WR PORT
I/O PORTS
RD PORT
PB
WR TRIS
WR ODC
PB
Data Bus
RD ODC
RD TRIS
WR LAT
RD LAT
Reference Manual” (DS61132) for a
This data sheet summarizes the features of
the PIC32MX family of devices. It is not
intended to be a comprehensive reference
source. Refer to the “PIC32MX Family
detailed description of this peripheral.
CLOCK
CLOCK
Sleep
BLOCK DIAGRAM OF A TYPICAL PORT STRUCTURE
Dedicated Port Module
Advance Information
®
D
D
D
CK
CK
CK
MCU to
EN
EN
EN
Q
Q
Q
Q
Q
Q
TRIS
LAT
0
1
ODC
Q
Q
Following are some of the key features of this module:
• Individual output pin open-drain enable/disable
• Individual input pin weak pull-up enable/disable
• Monitor selective inputs and generate interrupt
• Operation during CPU Sleep and Idle modes
• Fast bit manipulation using CLR, SET and INV
Figure 12-1 shows a block diagram of a typical I/O port,
whereas Figure 12-2 shows a block diagram of a
typical multiplexed I/O port.
when change in pin state is detected
registers
CK
Synchronization
D
PIC32MX FAMILY
Q
Q
CK
D
0
1
DS61143A - page 243
I/O Cell
I/O pin