MA180025 Microchip Technology, MA180025 Datasheet - Page 275

• Manufacturer Part Number: MA180025
• Description: MODULE PLUG-IN PIC18F87J90 PIM
• Manufacturer: Microchip Technology
• Series: PIC®r

Specifications of MA180025

• Accessory Type: Plug-In Module (PIM) - PIC18F87J90
• Product: Microcontroller Modules
• Silicon Manufacturer: Microchip
• Core Architecture: PIC
• Core Sub-architecture: PIC18
• Silicon Core Number: PIC18F
• Silicon Family Name: PIC18FxxJxx
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• For Use With/related Products: PICDEM LCD 2 Demonstration Board (DM163030)
• For Use With: DM163030 - KIT DEV PICDEM LCD2
• Lead Free Status / Rohs Status: Lead free / RoHS Compliant

20.0
The Addressable Universal Synchronous Asynchro-
nous Receiver Transmitter (AUSART) module is very
similar in function to the Enhanced USART module,
discussed in the previous chapter. It is provided as an
additional channel for serial communication with
external devices, for those situations that do not require
auto-baud detection or LIN/J2602 bus support.
The AUSART can be configured in the following modes:
• Asynchronous (full-duplex)
• Synchronous – Master (half-duplex)
• Synchronous – Slave (half-duplex)
The pins of the AUSART module are multiplexed with
the
RG2/RX2/DT2/V
configure these pins as an AUSART:
• bit, SPEN (RCSTA2<7>), must be set (= 1)
• bit, TRISG<2>, must be set (= 1)
• bit, TRISG<1>, must be cleared (= 0) for
• bit, TRISG<1>, must be set (= 1) for Synchronous
 2010 Microchip Technology Inc.
Asynchronous and Synchronous Master modes
Slave mode
functions
ADDRESSABLE UNIVERSAL
SYNCHRONOUS
ASYNCHRONOUS RECEIVER
TRANSMITTER (AUSART)
LCAP
of
1, respectively). In order to
PORTG
(RG1/TX2/CK2
and
PIC18F87J90 FAMILY
The driver for the TX2 output pin can also be optionally
configured as an open-drain output. This feature allows
the voltage level on the pin to be pulled to a higher level
through an external pull-up resistor, and allows the
output to communicate with external circuits without the
need for additional level shifters.
The open-drain output option is controlled by the U2OD
bit (LATG<7>). Setting the bit configures the pin for
open-drain operation.
20.1
The operation of the Addressable USART module is
controlled through two
RXSTA2. These are detailed in Register 20-1 and
Register 20-2, respectively.
Note:
Control Registers
The AUSART control will automatically
reconfigure the pin from input to output as
needed.
registers,
DS39933D-page 275
TXSTA2
and