PIC10LF322T-EMCSQTP datasheet(156/210 Pages) MICROCHIP

156 / 210 page

PIC10(L)F320/322

DS41585A-page 156

Preliminary

 2011 Microchip Technology Inc.

22.2

Low-Voltage Programming Entry

Mode

The Low-Voltage Programming Entry mode allows the

PIC10(L)F320/322 devices to be programmed using

VDD only, without high voltage. When the LVP bit of

Configuration Word is set to ‘1’, the low-voltage ICSP

programming entry is enabled. To disable the

Low-Voltage ICSP mode, the LVP bit must be

programmed to ‘0’.

Entry into the Low-Voltage Programming Entry mode

requires the following steps:

MCLR is brought to VIL.

A 32-bit key sequence is presented on

ICSPDAT, while clocking ICSPCLK.

Once the key sequence is complete, MCLR must be

held at VIL for as long as Program/Verify mode is to be

maintained.

If low-voltage programming is enabled (LVP = 1), the

MCLR Reset function is automatically enabled and

cannot be disabled. See Section 5.3 “Low-Power

Brown-out Reset (LPBOR)”

for more information.

The LVP bit can only be reprogrammed to ‘0’ by using

the High-Voltage Programming mode.

22.3

Common Programming Interfaces

Connection to a target device is typically done through

an ICSP™ header. A commonly found connector on

development tools is the RJ-11 in the 6P6C (6 pin, 6

connector) configuration. See Figure 22-2.

FIGURE 22-2:

ICD RJ-11 STYLE

CONNECTOR INTERFACE

Another connector often found in use with the PICkit™

programmers is a standard 6-pin header with 0.1 inch

spacing. Refer to Figure 22-3.

FIGURE 22-3:

PICkit™ STYLE CONNECTOR INTERFACE

Target

Bottom Side

PC Board

VPP/MCLR

VSS

ICSPCLK

VDD

ICSPDAT

Pin Description*

1 = VPP/MCLR

2 = VDD Target

3 = VSS (ground)

4 = ICSPDAT

5 = ICSPCLK

6 = No Connect

* The 6-pin header (0.100" spacing) accepts 0.025" square pins.

Pin Description*

1 = VPP/MCLR

2 = VDD Target

3 = VSS (ground)

4 = ICSPDAT

5 = ICSPCLK

6 = No Connect

Pin 1 Indicator

PIC10LF322T-EMCSQTP Datasheet(PDF) 156 Page - Microchip Technology

PIC10LF322T-EMCSQTP Datasheet(HTML) 156 Page - Microchip Technology

Html Pages

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 ...More

Datasheet Download

Link URL