MCP19116 datasheet(16/246 Pages) MICROCHIP

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MCP19116/7

DS20005479B-page 16

 2015-2016 Microchip Technology Inc.

2.1.8

GPB0 PIN

GPB0 is a true open-drain general purpose pin whose

data direction is controlled in TRISGPB. There is no

internal connection between this pin and device VDD.

This pin does not have a weak pull-up, but

interrupt-on-change

available.

When

the

MCP19116/7 are configured for I2C communication,

GPB0 functions as the I2C clock (SDA). This pin must

be configured as an input to allow proper operation. For

more information, refer to Section 29.2 “I2C Mode

Overview”.

2.1.9

GPB1 PIN

GPB1 is a general purpose TTL input or CMOS output

pin whose data direction is controlled in TRISGPB. An

internal weak pull-up and interrupt-on-change are also

available.

AN4 is an input to the A/D. To configure this pin to be

read by the A/D on channel 4, bits TRISB1 and ANSB1

must be set.

MCP19116 Only: TX is the USART Asynchronous

serial transmit.

MCP19116 Only: CK is the USART Synchronous serial

clock.

When the MCP19116/7 are configured as a master, this

pin is configured to be the VREF2 DAC output.

2.1.10

GPB4 PIN (MCP19117 ONLY)

GPB4 is a general purpose TTL input or CMOS output

pin whose data direction is controlled in TRISGPB. An

internal weak pull-up and interrupt-on-change are also

available.

AN5 is an input to the A/D. To configure this pin to be

read by the A/D on channel 5, bits TRISB4 and ANSB4

must be set.

ICSPDAT is the primary serial-programming data I/O

function. This is used in conjunction with ICSPCLK to

serial program the device.

2.1.11

GPB5 PIN (MCP19117 ONLY)

GPB5 is a general purpose TTL input or CMOS output

pin whose data direction is controlled in TRISGPB. An

internal weak pull-up and interrupt-on-change are also

available.

AN6 is an input to the A/D. To configure this pin to be

read by the A/D on channel 6, bits TRISB5 and ANSB5

must be set.

ICSPCLK is the primary serial-programming clock

function. This is used in conjunction with ICSPDAT to

serial program the device.

2.1.12

GPB6 PIN (MCP19117 ONLY)

GPB6 is a general purpose TTL input or CMOS output

pin whose data direction is controlled in TRISGPB. An

internal weak pull-up and interrupt-on-change are also

available.

AN7 is an input to the A/D. To configure this pin to be

read by the A/D on channel 7, bits TRISB6 and ANSB6

must be set.

MCP19117 Only: TX is the USART Asynchronous

serial transmit.

MCP19117 Only: CK is the USART Synchronous serial

clock.

2.1.13

GPB7 PIN (MCP19117 ONLY)

GPB7 is a general purpose TTL input or CMOS output

pin whose data direction is controlled in TRISGPB. An

internal weak pull-up and interrupt-on-change are also

available.

RX is the USART Asynchronous serial receive.

DT is the USART Synchronous serial clock.

For more information, refer to Section 10.0 “Address-

able USART Module”

GPB7 is the CCD2 output Compare. For more informa-

tion, refer to Section 27.0 “Dual Capture/Compare

(CCD) Module”.

2.1.14

DESATN PIN

Internal comparator inverting input. Used during

Quasi-Resonant operation for desaturation detection.

2.1.15

DESATP/ISOUT PIN

When using the internal comparator for desaturation

detection during Quasi-Resonant operation, this pin

connects to the comparator’s non-inverting input. The

output of the remote sense current-sense amplifier gets

configured to utilize the 5 k

 internal feedback resistor.

When not utilizing the internal comparator and not

configured to use the 5 k

 internal feedback resistor,

the current sense amplifier gets connected to this pin

and is ISOUT.

2.1.16

ISP PIN

The non-inverting input to internal current-sense

amplifier, typically used to differentially remote-sense

secondary current. This pin can be internally pulled-up

to VDD by setting the <ISPUEN> bit in the PE1 register.

2.1.17

ISN PIN

The inverting input to internal current-sense amplifier,

typically used to differentially remote-sense secondary

current.

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