PIC16CR56AT-LPE/SS View Datasheet(PDF) - Microchip Technology

Part Name

Description

Manufacturer

PIC16CR56AT-LPE/SS

EPROM/ROM-Based 8-bit CMOS Microcontroller Series

Microchip Technology 

PIC16C5X

TABLE 5-3: RESET CONDITIONS FOR ALL REGISTERS

Register

Address

Power-On Reset

MCLR or WDT Reset

W

N/A

xxxx xxxx

TRIS

N/A

1111 1111

OPTION

N/A

--11 1111

INDF

00h

xxxx xxxx

TMR0

01h

xxxx xxxx

PCL

02h

1111 1111

STATUS

FSR(1)

03h

0001 1xxx

04h

1xxx xxxx

PORTA

05h

---- xxxx

PORTB

PORTC(2)

06h

xxxx xxxx

07h

xxxx xxxx

General Purpose Register Files

07-7Fh

xxxx xxxx

Legend: x = unknown

u = unchanged

- = unimplemented, read as '0'

q = see tables in Table 5-1 for possible values.

uuuu uuuu

1111 1111

--11 1111

uuuu uuuu

uuuu uuuu

1111 1111

000q quuu

1uuu uuuu

---- uuuu

uuuu uuuu

uuuu uuuu

uuuu uuuu

Note 1: These values are valid for PIC16C57/CR57/C58/CR58. For the PIC16C54/CR54/C55/C56/CR56, the

value on RESET is 111x xxxx and for MCLR and WDT Reset, the value is 111u uuuu.

2: General purpose register file on PIC16C54/CR54/C56/CR56/C58/CR58.

FIGURE 5-1:

SIMPLIFIED BLOCK DIAGRAM OF ON-CHIP RESET CIRCUIT

Power-Up

Detect

VDD

POR (Power-On Reset)

MCLR/VPP pin

WDT

On-Chip

RC OSC

WDT Time-out

RESET

8-bit Asynch

Ripple Counter

(Device Reset

Timer)

S

Q

R

Q

CHIP RESET

DS30453E-page 20

Preliminary

 1997-2013 Microchip Technology Inc.

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