MCP19116-ESLASHMJ datasheet(57/246 Pages) MICROCHIP

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 2015-2016 Microchip Technology Inc.

DS20005479B-page 57

MCP19116/7

8.0

SYSTEM BENCH TESTING

To allow for easier system design and bench testing,

the MCP19116/7 devices feature a multiplexer used to

output various internal analog signals. These signals

can be measured on the GPA0 pin through a unity gain

buffer. The configuration control of the GPA0 pin is

found in the ABECON register (Register 6-14).

Control of the signals present at the output of the unity

gain analog buffer is found in the ADCON0 register

(Register 8-1).

ADCON0: ANALOG-TO-DIGITAL CONTROL REGISTER

U-0

R/W-0

—

CHS4

CHS3

CHS2

CHS1

CHS0

GO/DONE

ADON

bit 7

bit 0

Legend:

R = Readable bit

W = Writable bit

U = Unimplemented bit, read as ‘0’

u = Bit is unchanged

x = Bit is unknown

-n = Value at POR

‘1’ = Bit is set

‘0’ = Bit is cleared

bit 7

Unimplemented: Read as ‘0’

bit 6-2

CHS<4:0>: Analog Channel Select bits

00000 = VIN/n analog voltage measurement (VIN/15.5328)

00001 = VREF + VZC (DAC reference voltage + VZC pedestal setting current regulation level)

00010 = OV_REF (reference for overvoltage comparator)

00011 = VBGR (band gap reference)

00100 = VS (voltage proportional to VOUT)

00101 = EA_SC (error amplifier after slope compensation output)

00110 = A2 (secondary current sense amplifier output at RFB_INT connection)

00111 = Pedestal (Pedestal Voltage)

01000 = Reserved

01001 = Reserved

01010 = IP_ADJ (IP after Pedestal and Offset Adjust (at PWM Comparator))

01011 = IP_OFF_REF (IP Offset Reference)

01100 = VDR/n (VDR/n analog driver voltage measurement = 0.229V/V * VDR)

01101 = TEMP_SNS (analog voltage representing internal temperature)

01110 = DLL_VCON (Delay Locked Loop Voltage Reference - control voltage for dead time)

01111 = SLPCMP_REF (slope compensation reference)

10000 = Unimplemented

10001 = Unimplemented

10010 = Unimplemented

10011 = Unimplemented

10100 = Unimplemented

10101 = Unimplemented

10110 = Unimplemented

10111 = Unimplemented

11000 = GPA0/AN0

11001 = GPA1/AN1

11010 = GPA2/AN2

11011 = GPA3/AN3

11100 = GPB1/AN4

11101 = GPB4/AN5 (MCP19117 only)

11110 = GPB5/AN6 (MCP19117 only)

11111 = GPB6/AN7 (MCP19117 only)

MCP19116-E/MJ Datasheet(PDF) 57 Page - Microchip Technology

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