PIC18F6XJXX/8XJXX Family Flash MCU Programming Specification

PIC18F6XJXX/8XJXX
Flash Microcontroller Programming Specification
1.0
DEVICE OVERVIEW
This document includes the programming specifications
for the following devices:
• PIC18F67J93
• PIC18F87J93
• PIC18F67J90
• PIC18F87J90
• PIC18F67J50
• PIC18F87J72
• PIC18F67J11
• PIC18F87J50
• PIC18F67J10
• PIC18F87J11
• PIC18F66J93
• PIC18F87J10
• PIC18F66J90
• PIC18F86J93
• PIC18F66J55
• PIC18F86J90
• PIC18F66J50
• PIC18F86J72
• PIC18F66J16
• PIC18F86J55
• PIC18F66J15
• PIC18F86J50
• PIC18F66J11
• PIC18F86J16
• PIC18F66J10
• PIC18F86J15
• PIC18F65J90
• PIC18F86J11
• PIC18F65J50
• PIC18F86J10
• PIC18F65J15
• PIC18F85J90
• PIC18F65J11
• PIC18F85J50
• PIC18F65J10
• PIC18F85J15
• PIC18F64J90
• PIC18F85J11
• PIC18F64J11
• PIC18F85J10
• PIC18F63J90
• PIC18F84J90
• PIC18F63J11
• PIC18F84J11
2.0
PROGRAMMING OVERVIEW
OF THE PIC18F6XJXX/8XJXX
The PIC18F6XJXX/8XJXX devices are programmed
using In-Circuit Serial Programming™ (ICSP™).
This programming
specification
applies
to
PIC18F6XJXX/8XJXX devices in all package types.
2.1
Pin Diagrams
The pin diagrams for the PIC18F6XJXX/8XJXX are
shown in Figure 2-1, Figure 2-2 and Figure 2-3. The
pins that are required for programming are listed in
Table 2-1 and shown in darker lettering in the figures.
• PIC18F83J90
• PIC18F83J11
 2009 Microchip Technology Inc.
DS39644L-page 1
PIC18F6XJXX/8XJXX
TABLE 2-1:
Pin Name
PIN DESCRIPTIONS (DURING PROGRAMMING): PIC18F6XJXX/8XJXX
During Programming
Pin Name
Pin Type
Pin Description
MCLR
VDD and AVDD(1)
VSS and AVSS(1)
ENVREG
VDDCORE/VCAP
MCLR
P
Programming Enable
VDD
P
Power Supply
VSS
P
Ground
ENVREG
P
Internal Voltage Regulator Enable
VDDCORE
P
Regulated Power Supply for Microcontroller Core
VCAP
I
Filter Capacitor for On-Chip Voltage Regulator
RB6
PGC
I
Serial Clock
RB7
PGD
I/O
Serial Data
(2)
VUSB
VUSB
P
Internal USB 3.3V Voltage Regulator
Legend: I = Input, O = Output, P = Power
Note 1: All power supply and ground pins must be connected, including analog supplies (AVDD) and ground (AVSS).
2: Valid only for PIC18F6XJ5X/8XJ5X families. This pin should be connected to VDD during programming.
DS39644L-page 2
 2009 Microchip Technology Inc.
PIC18F6XJXX/8XJXX
FIGURE 2-1:
PIC18F6XJXX PIN DIAGRAMS
64-Pin TQFP
The following devices are included in 64-pin TQFP parts:
• PIC18F67J93
• PIC18F66J55
• PIC18F67J11
• PIC18F67J90
• PIC18F67J50
• PIC18F66J11
• PIC18F66J93
• PIC18F66J50
• PIC18F65J11
• PIC18F66J90
• PIC18F65J50
• PIC18F64J11
• PIC18F65J90
• PIC18F66J16
• PIC18F63J11
• PIC18F64J90
• PIC18F66F15
• PIC18F67J10
• PIC18F63J90
• PIC18F65J15
• PIC18F66J10
RD7
RD6
RD5
RD4
RD3
RD2
RD1
VSS
VDD
RD0
RE7
RE6
RE5
RE4
RE3
RE2
• PIC18F65J10
64 63 62 61 60 59 58 57 56 55 54 53 52 51 50 49
RE1
RE0
RG0
RG1
RG2
RG3
MCLR
RG4
VSS
VDDCORE/VCAP
RF7
RF6
RF5
RF4
RF3
RF2
48
1
2
3
4
5
6
7
8
9
10
11
12
13
14
47
46
45
44
43
42
41
40
PIC18F6XJXX
39
38
37
36
35
34
33
15
16
RB0
RB1
RB2
RB3
RB4
RB5
RB6/KBI2/PGC
VSS
OSC2
OSC1
VDD
RB7/KBI3/PGD
RC5
RC4
RC3
RC2
Note 1:
RC7
RC6
RC0
RA4
RC1
RA5
VDD
VSS
RA0
RA1
RA2
RA3
AVSS
AVDD
ENVREG
RF1/VUSB(1)
17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32
Valid only for PIC18F6XJ5X/8XJ5X families.
 2009 Microchip Technology Inc.
DS39644L-page 3
PIC18F6XJXX/8XJXX
FIGURE 2-2:
PIC18F8XJXX PIN DIAGRAMS
80-Pin TQFP
The following devices are included in 80-pin TQFP parts:
• PIC18F87J93
• PIC18F86J55
• PIC18F87J11
• PIC18F87J90
• PIC18F87J50
• PIC18F86J11
• PIC18F86J93
• PIC18F86J50
• PIC18F85J11
• PIC18F86J90
• PIC18F85J50
• PIC18F84J11
• PIC18F85J90
• PIC18F86J16
• PIC18F83J11
• PIC18F84J90
• PIC18F86F15
• PIC18F87J10
• PIC18F83J90
• PIC18F85J15
• PIC18F86J10
RJ1
RJ0
RD7
RD6
RD5
RD4
RD3
RD2
RD1
VSS
VDD
RD0
RE7
RE6
RE5
RE4
RE3
RE2
RH0
RH1
• PIC18F85J10
80 79 78 77 76 75 74 73 72 71 70 69 68 67 66 65 64 63 62 61
RH2
RH3
1
2
RE1
RE0
RG0
RG1
3
4
5
6
7
8
9
10
11
12
13
14
15
16
RG2
RG3
MCLR
RG4
VSS
VDDCORE/VCAP
RF7
RF6
RF5
RF4
RF3
RF2
RH7
RH6
60
59
58
57
56
55
54
53
52
51
50
PIC18F8XJXX
49
48
47
46
45
44
43
42
41
17
18
19
20
RJ2
RJ3
RB0
RB1
RB2
RB3
RB4
RB5
RB6/KBI2/PGC
VSS
OSC2
OSC1
VDD
RB7/KBI3/PGD
RC5
RC4
RC3
RC2
RJ7
RJ6
Note 1:
DS39644L-page 4
RJ5
RJ4
RC7
RC6
RC0
RA4
RC1
RA5
VDD
VSS
RA0
RA1
RA2
AVSS
RA3
AVDD
ENVREG
RF1/VUSB(1)
RH4
RH5
21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40
Valid only for PIC18F6XJ5X/8XJ5X families.
 2009 Microchip Technology Inc.
PIC18F6XJXX/8XJXX
FIGURE 2-3:
PIC18F8XJ72 PIN DIAGRAMS
80-Pin TQFP
SEG7/RD7
SEG6/RD6
SEG5/RD5
SDIA
SEG4/RD4
SEG3/RD3
SEG2/RD2
SEG1/RD1
ARESET
SVDD
VSS
VDD
SEG0/RD0
SAVDD
COM3/RE6
SEG31/CCP2(1)/RE7
COM2/RE5
COM1/RE4
COM0/RE3
LCDBIAS3/RE2
The following devices are included in 80-pin TQFP parts:
• PIC18F87J72
• PIC18F86J72
80 79 78 77 76 75 74 73 72 71 70 69 68 67 66 65 64 63 62 61
CH0+
1
60
SDOA
CH0-
2
59
SCKA
LCDBIAS2/RE1
3
58
CSA
LCDBIAS1/RE0
4
57
SEG30/INT0/RB0
LCDBIAS0/RG0
5
56
SEG8/RTCC/INT1/RB1
TX2/CK2/RG1
6
55
SEG9/CTED1/INT2/RB2
VLCAP1/RX2/DT2/RG2
7
54
SEG10/CTED2/INT3/RB3
VLCAP2/RG3
8
53
SEG11/KBI0/RB4
MCLR
9
52
SEG29/KBI1/RB5
51
PGC/KBI2/RB6
SEG26/RG4
10
VSS
11
50
VSS
VDDCORE/VCAP
12
49
OSC2/CLKO/RA6
SEG25/AN5/SS/RF7
13
48
OSC1/CLKI/RA7
SEG24/AN11/C1INA/RF6
14
47
VDD
SEG23/AN10/C1INB/CVREF/RF5
15
46
PGD/KBI3/RB7
SEG22/AN9/C2INA/RF4
16
45
SEG12/SDO1/RC5
SEG21/AN8/C2INB/RF3
17
44
SEG16/SDI/SDA/RC4
SEG20/AN7/C1OUT/RF2
18
43
SEG17/SCK/SCL/RC3
CH1-
19
42
SEG13/CCP1/RC2
CH1+
20
41
CLKIA
PIC18F8XJ72
DR
SEG28/RX1/DT1/RC7
SEG27/TX1/CK1/RC6
T1OSO/T13CLKI/RC0
SVSS
SEG32/T1OSI/CCP2(1)/RC1
SEG14/T0CKI/RA4
SEG15/AN4/RA5
VSS
AN0/RA0
SEG18/AN1/RA1
REFIN-
REFIN+/OUT
AN2/VREF-/RA2
SAVSS
AN3/VREF+/RA3
AVSS
AVDD
ENVREG
SEG19/AN6/C2OUT/RF1
21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40
Note 1:
The CCP2 pin placement depends on the setting of the CCP2MX configuration bit.
Note:
Pinouts are subject to change.
 2009 Microchip Technology Inc.
DS39644L-page 5
PIC18F6XJXX/8XJXX
2.1.1
ON-CHIP VOLTAGE REGULATOR
All of the PIC18F6XJXX/8XJXX devices have dual
power requirements. The microcontroller core can be
powered from an external source that is separate from
VDD, or it can be powered from an on-chip regulator
which derives power from VDD. Both sources use the
common VDDCORE/VCAP pin.
The regulator is enabled by connecting VDD to the
ENVREG pin. In this case, a low ESR capacitor must
be connected to the VDDCORE/VCAP pin for proper
device operation. If the regulator is disabled by connecting VSS to the ENVREG pin, power to the core
must be supplied on VDDCORE/VCAP. Whether or not
the regulator is used, it is always good design practice
to have sufficient capacitance on all supply pins.
Examples are shown in Figure 2-4.
The specifications for core voltage and capacitance are
listed in Section 6.0 “AC/DC Characteristics and
Timing Requirements for Program/Verify Test
Mode”.
FIGURE 2-4:
CONNECTIONS FOR THE
ON-CHIP REGULATOR
Regulator Enabled (ENVREG tied to VDD):
3.3V(1)
PIC18F6XJXX/8XJXX
VDD
ENVREG
VDDCORE/VCAP
CF
VSS
Regulator Disabled (ENVREG tied to Ground):
2.5V(1)
3.3V(1)
PIC18F6XJXX/8XJXX
VDD
ENVREG
VDDCORE/VCAP
VSS
Note 1: These are typical operating voltages. Refer to
Section 6.0 “AC/DC Characteristics and
Timing Requirements for Program/Verify
Test Mode”.
DS39644L-page 6
 2009 Microchip Technology Inc.
PIC18F6XJXX/8XJXX
2.2
Memory Maps
TABLE 2-2:
The PIC18F6XJXX/8XJXX devices offer a total of eight
program memory sizes, ranging from 8 Kbytes to
128 Kbytes. The memory sizes for different members
of the family are shown in Table 2-2. The overall
memory maps for all devices are shown in Figure 2-5,
Figure 2-6, Figure 2-7 and Figure 2-8.
For purposes of code protection, the program memory
for every device is treated as a single block. Enabling
code protection, thus protects the entire code memory
and not individual segments.
The Configuration Words for these devices are located at
addresses 300000h through 300005h. These are implemented as three pairs of volatile memory registers.
300006h-300007h are reserved for a fourth pair of
Configuration registers that are not implemented in
PIC18F6XJXX/8XJXX devices. Each register is automatically loaded from a copy stored at the end of program
memory. For this reason, the last four words of the code
space (also called the Flash Configuration Words) should
be written with configuration data and not executable
code. The addresses of the Flash Configuration Words
are also listed in Table 2-2. Refer to section Section 5.0
“Configuration Word” for more information.
Locations, 3FFFFEh and 3FFFFFh, are reserved for
the Device ID bits. These bits may be used by the
programmer to identify what device type is being
programmed and are described in Section 5.1
“Device ID Word”. These Device ID bits read out
normally, even after code protection.
2.2.1
MEMORY ADDRESS POINTER
Memory in the device address space (000000h to
3FFFFFh) is addressed via the Table Pointer register,
which in turn is comprised of three registers:
• TBLPTRU at RAM address 0FF8h
• TBLPTRH at RAM address 0FF7h
• TBLPTRL at RAM address 0FF6h
TBLPTRU
TBLPTRH
TBLPTRL
Addr<21:16>
Addr<15:8>
Addr<7:0>
The 4-bit command, ‘0000’ (core instruction), is used to
load the Table Pointer prior to using many read or write
operations.
 2009 Microchip Technology Inc.
Device
PROGRAM MEMORY SIZES
FOR PIC18F6XJXX/8XJXX
DEVICES
Program Memory
Location of Flash
(Kbytes)
Configuration Words
PIC18F63J11
PIC18F63J90
PIC18F83J11
8
1FF8h:1FFFh
16
3FF8h:3FFFh
32
7FF8h:7FFFh
48
BFF8h:BFFFh
64
FFF8h:FFFFh
96
17FF8h:17FFFh
128
1FFF8h:1FFFh
PIC18F83J90
PIC18F64J11
PIC18F64J90
PIC18F84J11
PIC18F84J90
PIC18F65J10
PIC18F65J11
PIC18F65J50
PIC18F65J90
PIC18F85J10
PIC18F85J11
PIC18F85J50
PIC18F85J90
PIC18F65J15
PIC18F85J15
PIC18F66J10
PIC18F66J11
PIC18F66J50
PIC18F66J90
PIC18F66J93
PIC18F86J10
PIC18F86J11
PIC18F86J50
PIC18F86J72
PIC18F86J90
PIC18F86J93
PIC18F66J15
PIC18F66J16
PIC18F66J55
PIC18F86J15
PIC18F86J16
PIC18F86J55
PIC18F67J10
PIC18F67J11
PIC18F67J50
PIC18F67J90
PIC18F67J93
PIC18F87J11
PIC18F87J10
PIC18F87J50
PIC18F87J72
PIC18F87J90
PIC18F87J93
DS39644L-page 7
PIC18F6XJXX/8XJXX
MEMORY MAPS FOR PIC18FXXJ10/XXJ15 DEVICES(1)
FIGURE 2-5:
PIC18FX5J10
PIC18FX5J15
PIC18FX6J10
PIC18FX6J15
PIC18FX7J10
Code Memory
Code Memory
Code Memory
Code Memory
Code Memory
Flash Conf. Words
007FFFh
Flash Conf. Words
00BFFFh
Flash Conf. Words
00FFFFh
Flash Conf. Words
017FFFh
Flash Conf. Words
Unimplemented
Read as ‘0’
000000h
Unimplemented
Read as ‘0’
Unimplemented
Read as ‘0’
Unimplemented
Read as ‘0’
01FFFFh
Unimplemented
Read as ‘0’
1FFFFFh
200000h
Configuration
Configuration
Configuration
Configuration
Configuration
Space
Space
Space
Space
Space
Configuration
Words
Configuration
Words
Configuration
Words
Configuration
Words
Configuration
Words
Configuration
Configuration
Configuration
Configuration
Configuration
Space
Space
Space
Space
Space
Device IDs
Device IDs
Device IDs
Device IDs
Device IDs
2FFFFFh
300000h
300007h(2)
3FFFFEh
3FFFFFh
Memory spaces are unimplemented or unavailable in normal execution mode and read as ‘0’.
Memory spaces are read-only (Device IDs) or cannot be directly programmed by ICSP™ (Configuration Words).
Note 1:
2:
DS39644L-page 8
Sizes of memory areas are not to scale. Sizes of accessible memory areas are enhanced to show detail.
Configuration Words at 300006h and 300007h are not implemented on PIC18FXXJ10/XXJ15 devices.
 2009 Microchip Technology Inc.
PIC18F6XJXX/8XJXX
FIGURE 2-6:
MEMORY MAPS FOR PIC18FXXJ11/XXJ9X/XXJ72 DEVICES(1)
PIC18FX3J11/X3J90
PIC18FX4J11/X4J90
PIC18FX5J11/X5J90
PIC18FX6J9X/X6J72
PIC18FX7J9X/X7J72
Code Memory
Code Memory
Code Memory
Code Memory
Code Memory
Flash Conf. Words
001FFFh
Flash Conf. Words
003FFFh
Flash Conf. Words
007FFFh
Flash Conf. Words
Unimplemented
Read as ‘0’
Unimplemented
Read as ‘0’
Unimplemented
Read as ‘0’
00FFFFh
Unimplemented
Read as ‘0’
Flash Conf. Words
Configuration
Configuration
Configuration
Configuration
Configuration
Space
Space
Space
Space
Space
Configuration
Words
Configuration
Words
Configuration
Words
Configuration
Words
Configuration
Words
Configuration
Configuration
Configuration
Configuration
Configuration
Space
Space
Space
Space
Space
Device IDs
Device IDs
Device IDs
Device IDs
000000h
Device IDs
1FFFFFh
200000h
2FFFFFh
300000h
300007h(2)
3FFFFEh
3FFFFFh
Memory spaces are unimplemented or unavailable in normal execution mode and read as ‘0’.
Memory spaces are read-only (Device IDs) or cannot be directly programmed by ICSP™ (Configuration Words).
Note 1: Sizes of memory areas are not to scale. Sizes of accessible memory areas are enhanced to show detail.
2: Configuration Words at 300006h and 300007h are not implemented on PIC18FXXJ11/XXJ90/XXJ93/XXJ72 devices.
3: PIC18F66J11/67J11/86J11/87J11 memory map is not included in this PIC18FXXJ11/XXJ90/XXJ72 memory map
(see Figure 2-7).
 2009 Microchip Technology Inc.
DS39644L-page 9
PIC18F6XJXX/8XJXX
MEMORY MAPS FOR PIC18F6XJ5X/8XJ5X DEVICES(1)
FIGURE 2-7:
PIC18FX5J50
PIC18FX6J50/
X6J11
PIC18FX6J55
PIC18FX7J50/
X7J11
Code Memory
Code Memory
Code Memory
Code Memory
Flash Conf. Words
007FFFh
Flash Conf. Words
00FFFFh
Flash Conf. Words
017FFFh
Flash Conf. Words
Unimplemented
Read as ‘0’
000000h
Unimplemented
Read as ‘0’
Unimplemented
Read as ‘0’
01FFFFh
Unimplemented
Read as ‘0’
1FFFFFh
200000h
Configuration
Configuration
Configuration
Configuration
Space
Space
Space
Space
Configuration
Words
Configuration
Words
Configuration
Words
Configuration
Words
Configuration
Configuration
Configuration
Configuration
Space
Space
Space
Space
Device IDs
Device IDs
Device IDs
Device IDs
2FFFFFh
300000h
300007h(2)
3FFFFEh
3FFFFFh
Memory spaces are unimplemented or unavailable in normal execution mode and read as ‘0’.
Memory spaces are read-only (Device IDs) or cannot be directly programmed by ICSP™ (Configuration Words).
Note 1:
2:
Sizes of memory areas are not to scale. Sizes of accessible memory areas are enhanced to show detail.
Configuration Words at 300006h and 300007h are not implemented on PIC18F6XJ50/8XJ5X devices.
DS39644L-page 10
 2009 Microchip Technology Inc.
PIC18F6XJXX/8XJXX
FIGURE 2-8:
MEMORY MAPS FOR PIC18F6XJ11/F6XJ16/F8XJ11/F8XJ16 DEVICES(1)
PIC18FX6J11
PIC18FX6J16
Code Memory
Code Memory
PIC18FX7J11
Code Memory
Flash Conf. Words
00FFFFh
Flash Conf. Words
017FFFh
Flash Conf. Words
Unimplemented
Read as ‘0’
000000h
Unimplemented
Read as ‘0’
01FFFFh
Unimplemented
Read as ‘0’
1FFFFFh
200000h
Configuration
Configuration
Configuration
Space
Space
Space
Configuration
Words
Configuration
Words
Configuration
Words
Configuration
Configuration
Configuration
Space
Space
Space
Device IDs
Device IDs
Device IDs
2FFFFFh
300000h
300007h(2)
3FFFFEh
3FFFFFh
Memory spaces are unimplemented or unavailable in normal execution mode and read as ‘0’.
Memory spaces are read-only (Device IDs) or cannot be directly programmed by ICSP™ (Configuration Words).
Note 1:
2:
Sizes of memory areas are not to scale. Sizes of accessible memory areas are enhanced to show detail.
Configuration Words at 300006h and 300007h are not implemented on PIC18F6XJ50/8XJ5X devices.
 2009 Microchip Technology Inc.
DS39644L-page 11
PIC18F6XJXX/8XJXX
2.3
Overview of the Programming
Process
2.4
Figure 2-9 shows the high-level overview of the
programming process. First, a Bulk Erase is performed.
Next, the code memory is programmed. Since the only
nonvolatile Configuration Words are within the code
memory space, they too are programmed as if they
were code. Code memory (including the Configuration
Words) is then verified to ensure that programming was
successful.
Note:
Entry into ICSP modes for PIC18F6XJXX/8XJXX
devices is somewhat different than previous PIC18
devices. As shown in Figure 2-10, entering ICSP
Program/Verify mode requires three steps:
1.
2.
3.
The key sequence is a specific 32-bit pattern,
‘0100 1101 0100 0011 0100 1000 0101 0000’
(more easily remembered as 4D434850h in hexadecimal). The device will enter Program/Verify mode
only if the sequence is valid. The Most Significant bit of
the most significant nibble must be shifted in first.
HIGH-LEVEL
PROGRAMMING FLOW
Start
Once the key sequence is complete, VIH must be
applied to MCLR and held at that level for as long as
Program/Verify mode is to be maintained. An interval of
at least time, P20 and P12, must elapse before
presenting data on PGD. Signals appearing on PGD
before P12 has elapsed may not be interpreted as valid.
Enter ICSP™
Perform Bulk
Erase
On successful entry, the program memory can be
accessed and programmed in serial fashion. While in
the Program/Verify mode, all unused I/Os are placed in
the high-impedance state.
Program Memory
Exiting Program/Verify mode is done by removing VIH
from MCLR, as shown in Figure 2-11. The only requirement for exit is that an interval, P16, should elapse
between the last clock and the program signals on
PGC and PGD before removing VIH.
Verify Program
Exit ICSP
When VIH is reapplied to MCLR, the device will enter
the ordinary operational mode and begin executing the
application instructions.
Done
FIGURE 2-10:
Voltage is briefly applied to the MCLR pin.
A 32-bit key sequence is presented on PGD.
Voltage is reapplied to MCLR.
The programming voltage applied to MCLR is VIH, or
usually, VDD. There is no minimum time requirement for
holding at VIH. After VIH is removed, an interval of at
least P19 must elapse before presenting the key
sequence on PGD.
In order to maintain the endurance of the
cells, each Flash byte should not be
programmed more than twice between
erase operations. A Bulk Erase of the
device is required before attempting to
modify the contents a third time.
FIGURE 2-9:
Entering and Exiting ICSP
Program/Verify Mode
ENTERING PROGRAM/VERIFY MODE
P13
P20
MCLR
P12
VIH
VIH
VDD
Program/Verify Entry Code = 4D434850h
PGD
0
1
0
0
1
b31
b30
b29
b28
b27
...
0
0
0
0
b3
b2
b1
b0
PGC
P19
DS39644L-page 12
P2B
P2A
 2009 Microchip Technology Inc.
PIC18F6XJXX/8XJXX
FIGURE 2-11:
EXITING
PROGRAM/VERIFY MODE
Throughout this specification, commands and data are
presented as illustrated in Table 2-4. The 4-bit command
is shown, Most Significant bit (MSb) first. The command
operand, or “Data Payload”, is shown <MSB><LSB>.
Figure 2-12 demonstrates how to serially present a
20-bit command/operand to the device.
P16
VIH
MCLR
2.5.2
VDD
The core instruction passes a 16-bit instruction to the
CPU core for execution. This is needed to set up
registers as appropriate for use with other commands.
VIH
PGD
CORE INSTRUCTION
PGC
TABLE 2-3:
COMMANDS FOR
PROGRAMMING
PGD = Input
4-Bit
Command
Description
2.5
Serial Program/Verify Operation
The PGC pin is used as a clock input pin and the PGD
pin is used for entering command bits and data
input/output during serial operation. Commands and
data are transmitted on the rising edge of PGC, latched
on the falling edge of PGC and are Least Significant bit
(LSb) first.
2.5.1
4-BIT COMMANDS
All instructions are 20 bits, consisting of a leading 4-bit
command followed by a 16-bit operand, which depends
on the type of command being executed. To input a
command, PGC is cycled four times. The commands
needed for programming and verification are shown in
Table 2-3.
Core Instruction
(Shift in 16-bit instruction)
0000
Shift Out TABLAT Register
0010
Table Read
1000
Table Read, Post-Increment
1001
Table Read, Post-Decrement
1010
Table Read, Pre-Increment
1011
Table Write
1100
Table Write, Post-Increment by 2
1101
Table Write, Start Programming,
Post-Increment by 2
1110
Table Write, Start Programming
1111
TABLE 2-4:
Depending on the 4-bit command, the 16-bit operand
represents 16 bits of input data, or 8 bits of input data
and 8 bits of output data.
SAMPLE COMMAND
SEQUENCE
4-Bit
Command
Data
Payload
1101
3C 40
Core Instruction
Table Write,
post-increment by 2
TABLE WRITE, POST-INCREMENT TIMING (1101)
FIGURE 2-12:
P2
1
2
3
4
P2A
P2B
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
2
1
3
4
PGC
P5A
P5
P4
P3
PGD
1
0
1
1
0
0
0
0
4-Bit Command
0
0
0
1
0
0
0
4
C
16-Bit Data Payload
1
1
1
1
0
0
n
n
n
n
3
Fetch Next 4-Bit Command
PGD = Input
 2009 Microchip Technology Inc.
DS39644L-page 13
PIC18F6XJXX/8XJXX
3.0
DEVICE PROGRAMMING
TABLE 3-1:
Programming includes the ability to erase or write the
memory within the device.
4-Bit
Command
The EECON1 register is used to control Write or Row
Erase operations. The WREN bit (EECON1<2>) must
be set to enable writes; this must be done prior to
initiating a write sequence. It is strongly recommended
that the WREN bit only be set immediately prior to a
program or erase operation.
Note:
3.1
The EECON1 register is available only in
ICSP Programming mode. In normal
operating modes, the corresponding SFR
location (FA6h) is unimplemented. Writes
to the register during code execution will
have no effect; reading the location will
return ‘0’s.
ICSP Erase
3.1.1
ICSP BULK ERASE
The PIC18F6XJXX/8XJXX devices may be Bulk
Erased by writing 0180h to the table address,
3C0005h:3C0004h. The basic sequence is shown in
Table 3-1 and demonstrated in Figure 3-1.
BULK ERASE COMMAND
SEQUENCE
Data
Payload
0000
0000
0000
0000
0000
0000
1100
0000
0000
0000
0000
0000
0000
1100
0E
6E
0E
6E
0E
6E
01
0E
6E
0E
6E
0E
6E
80
0000
0000
00 00
00 00
3C
F8
00
F7
05
F6
01
3C
F8
00
F7
04
F6
80
MOVLW 3Ch
MOVWF TBLPTRU
MOVLW 00h
MOVWF TBLPTRH
MOVLW 05h
MOVWF TBLPTRL
Write 01h to 3C0005h
MOVLW 3Ch
MOVWF TBLPTRU
MOVLW 00h
MOVWF TBLPTRH
MOVLW 04h
MOVWF TBLPTRL
Write 80h TO 3C0004h to
erase entire device.
NOP
Hold PGD low until erase
completes.
FIGURE 3-1:
BULK ERASE FLOW
Start
Since the code-protect Configuration bit is stored in the
program code within code memory, a Bulk Erase
operation will also clear any code-protect settings for
the device.
Write 0101h
to 3C0005h
The actual Bulk Erase function is a self-timed
operation. Once the erase has started (falling edge of
the 4th PGC after the NOP command), serial execution
will cease until the erase completes (parameter, P11).
During this time, PGC may continue to toggle but PGD
must be held low.
Note:
Write 8080h to
3C0004h to Erase
Entire Device
Delay P11
Time
A Bulk Erase is the only way to reprogram
the code-protect Configuration bit from an
ON state to an OFF state.
FIGURE 3-2:
Core Instruction
Done
BULK ERASE TIMING
P5
1
2
3
4
2
1
15 16
1
2
3
4
1
2
15 16
1
2
3
4
1
2
n
n
PGC
PGD
0
0
1
1
4-Bit Command
1
1
0
16-Bit
Data Payload
0
P5A
P5
P5A
P5
0
0
0
0
4-Bit Command
0
0
0
0
16-Bit
Data Payload
P11
0
0
0
0
4-Bit Command
Erase Time
16-Bit
Data Payload
PGD = Input
DS39644L-page 14
 2009 Microchip Technology Inc.
PIC18F6XJXX/8XJXX
3.1.2
ICSP ROW ERASE
FIGURE 3-3:
It is possible to erase a single row (1024 bytes of data),
provided the block is not code-protected. Rows are
located at static boundaries, beginning at program
memory address, 000000h, extending to the internal
program memory limit (see Section 2.2 “Memory
Maps”).
The Row Erase duration is internally timed. After the
WR bit in EECON1 is set, a NOP is issued, where the
4th PGC is held high for the duration of the Row Erase
time, P10.
The
code
sequence
to
Row
Erase
a
PIC18F6XJXX/8XJXX device is shown in Table 3-2. The
flowchart, shown in Figure 3-3, depicts the logic necessary to completely erase a PIC18F6XJXX/8XJXX
device. The timing diagram that details the “Row Erase”
operation and parameter, P10, is shown in Figure 3-3.
Note:
Start
Addr = 0
Configure
Device for
Row Erase
4-Bit
Command
Start Erase Sequence
and Hold PGC High
for Time P10
Addr = Addr + 1024
No
All
Rows
Done?
Yes
Done
The TBLPTR register can point at any byte
within the row intended for erase.
TABLE 3-2:
ROW ERASE CODE
MEMORY FLOW
ERASE CODE MEMORY CODE SEQUENCE
Data Payload
Core Instruction
Step 1: Enable memory writes.
0000
84 A6
BSF
EECON1, WREN
CLRF
CLRF
CLRF
TBLPTRU
TBLPTRH
TBLPTRL
Step 2: Point to first row in code memory.
0000
0000
0000
6A F8
6A F7
6A F6
Step 3: Enable erase and erase single row.
0000
0000
0000
88 A6
82 A6
00 00
BSF
EECON1, FREE
BSF
EECON1, WR
NOP – hold PGC high for time P10.
Step 4: Repeat step 3, with Address Pointer incremented by 1024 until all rows are erased.
 2009 Microchip Technology Inc.
DS39644L-page 15
PIC18F6XJXX/8XJXX
3.2
Code Memory Programming
Programming code memory is accomplished by first
loading data into the write buffer and then initiating a
programming sequence. The write buffer for all
PIC18F6XJXX/8XJXX devices is 64 bytes. It can be
mapped to any integral boundary of 64 bytes,
beginning at 000000h. The actual memory write
sequence takes the contents of this buffer and
programs the 64 bytes of code memory that contains
the Table Pointer.
Write buffer locations are not cleared following a write
operation. The buffer retains its data after the write is
complete. This means that the buffer must be written
with 64 bytes on each operation. If there are locations
in the code memory that are to remain empty, the
corresponding locations in the buffer must be filled with
FFFFh. This avoids rewriting old data from the previous
cycle.
The programming duration is internally timed. After a
Start Programming command is issued (4-bit command, ‘1111’), a NOP is issued, where the 4th PGC is
held high for the duration of the programming time, P9.
device. The timing diagram that details the Start
Programming command and parameter P9 is shown in
Figure 3-5.
Note 1: To maintain the endurance specification
of the Flash program memory cells, each
64-byte block of program memory should
never be programmed more than once
between erase operations. If any byte
within a 64-byte block of program
memory is written, that entire block must
not be written to again until a Bulk Erase
on the part, or a Row Erase on the row
containing the modified 64-byte block,
has been performed. This only applies to
the PIC18F87J10, PIC18F85J90 and
PIC18F85J11 families. The PIC18F87J50,
PIC18F87J11, PIC18F87J90, PIC18F87J93
and PIC18F87J72 families use the 8 MHz
FRC oscillator for programming, and therefore, can withstand up to 4 block write
operations before needing to be erased.
The
code
sequence
to
program
a
PIC18F6XJXX/8XJXX device is shown in Table 3-3.
The flowchart shown in Figure 3-4 depicts the logic
necessary to completely write a PIC18F6XJXX/8XJXX
TABLE 3-3:
2: The TBLPTR register must point to the
same region when initiating the programming sequence as it did when the write
buffers were loaded.
WRITE CODE MEMORY CODE SEQUENCE
4-Bit
Command
Data Payload
Core Instruction
Step 1: Enable writes.
0000
84 A6
BSF
EECON1, WREN
MOVLW
MOVWF
MOVLW
MOVWF
MOVLW
MOVWF
<Addr[21:16]>
TBLPTRU
<Addr[15:8]>
TBLPTRH
<Addr[7:0]>
TBLPTRL
Step 2: Load write buffer.
0000
0000
0000
0000
0000
0000
0E
6E
0E
6E
0E
6E
<Addr[21:16]>
F8
<Addr[15:8]>
F7
<Addr[7:0]>
F6
Step 3: Repeat for all but the last two bytes. Any unused locations should be filled with FFFFh.
1101
<MSB><LSB>
Write 2 bytes and post-increment address by 2.
Step 4: Load write buffer for last two bytes.
1111
0000
<MSB><LSB>
00 00
Write 2 bytes and start programming.
NOP - hold PGC high for time P9.
To continue writing data, repeat steps 2 through 4, where the Address Pointer is incremented by 2 at each iteration of the loop.
DS39644L-page 16
 2009 Microchip Technology Inc.
PIC18F6XJXX/8XJXX
FIGURE 3-4:
PROGRAM CODE MEMORY FLOW
Start
N=1
LoopCount = 0
Configure
Device for
Writes
Load 2 Bytes
to Write
Buffer at <Addr>
N=N+1
N=1
LoopCount =
LoopCount + 1
All
Bytes
Written?
No
Yes
Start Write Sequence
and Hold PGC
High Until Done
and Wait P9
All
Locations
Done?
No
Yes
Done
FIGURE 3-5:
TABLE WRITE AND START PROGRAMMING INSTRUCTION TIMING (1111)
P5
1
2
3
4
1
3
2
4
5
6
15
16
1
2
3
4
PGC
2
3
P9
P5A
P5
PGD
1
1
1
1
1
4-Bit Command
n
n
n
n
n
n
n
n
16-Bit Data Payload
0
0
0
0
4-Bit Command
0
Programming Time
0
0
16-Bit
Data Payload
PGD = Input
 2009 Microchip Technology Inc.
DS39644L-page 17
PIC18F6XJXX/8XJXX
3.2.1
MODIFYING CODE MEMORY
3.2.2
The previous programming example assumed that the
device had been Bulk Erased prior to programming. It
may be the case, however, that the user wishes to
modify only a section of an already programmed
device.
The appropriate number of bytes required for the erase
buffer (1,024 bytes) must be read out of code memory
(as described in Section 4.2 “Verify Code Memory
and Configuration Word”) and buffered. Modifications can be made on this buffer. Then, the row of code
memory that was read out must be erased and rewritten with the modified data. The code sequence is
shown in Table 3-4. The WREN bit must be set if the
WR bit in EECON1 is used to initiate a write sequence.
TABLE 3-4:
CONFIGURATION WORD
PROGRAMMING
Since the Flash Configuration Words are stored in
program memory, they are programmed as if they were
program data. Refer to Section 3.2 “Code Memory
Programming” and Section 3.2.1 “Modifying Code
Memory” for methods and examples on programming
or modifying program memory. See also Section 5.0
“Configuration Word” for additional information on
the Configuration Words.
MODIFYING CODE MEMORY
4-Bit
Command
Data Payload
Core Instruction
Step 1: Direct access to code memory.
0000
0000
0000
0000
0000
0000
0E
6E
0E
6E
0E
6E
<Addr[21:16]>
F8
<Addr[8:15]>
F7
<Addr[7:0]>
F6
MOVLW
MOVWF
MOVLW
MOVWF
MOVLW
MOVWF
<Addr[21:16]>
TBLPTRU
<Addr[8:15]>
TBLPTRH
<Addr[7:0]>
TBLPTRL
Step 2: Read and modify code memory.
0000
0000
82 A6
88 A6
BSF
BSF
EECON1, WREN
EECON1, FREE
Step 3: Enable memory writes and set up an erase.
0000
0000
82 A6
00 00
BSF
BSF
EECON1, WR
NOP – hold PGC high for time P10.
Step 4: Load write buffer. The correct bytes will be selected based on the Table Pointer.
0000
0000
0000
0000
0000
0000
1101
.
.
.
1111
0000
0E <Addr[21:16]>
6E F8
0E <Addr[8:15]>
6E F7
0E <Addr[7:0]>
6E F6
<MSB><LSB>
.
.
.
<MSB><LSB>
00 00
MOVLW
MOVWF
MOVLW
MOVWF
MOVLW
MOVWF
Write 2
<Addr[21:16]>
TBLPTRU
<Addr[8:15]>
TBLPTRH
<Addr[7:0]>
TBLPTRL
bytes and post-increment address by 2.
Repeat as many times as necessary to fill the write buffer.
Write 2 bytes and start programming.
NOP - hold PGC high for time P9.
To continue modifying data, repeat Step 5, where the Address Pointer is incremented by 1024 bytes at each iteration of the loop.
Step 5: Disable writes.
0000
94 A6
DS39644L-page 18
BCF
EECON1, WREN
 2009 Microchip Technology Inc.
PIC18F6XJXX/8XJXX
4.0
READING THE DEVICE
4.1
Read Code Memory
P6 must be introduced after the falling edge of the 8th
PGC of the operand to allow PGD to transition from an
input to an output. During this time, PGC must be held
low (see Figure 4-1). This operation also increments
the Table Pointer by one, pointing to the next byte in
code memory for the next read.
Code memory is accessed one byte at a time via the
4-bit command, ‘1001’ (table read, post-increment).
The contents of memory pointed to by the Table Pointer
(TBLPTRU:TBLPTRH:TBLPTRL) are serially output on
PGD.
This technique will work to read any memory in the
000000h to 3FFFFFh address space, so it also applies
to reading the Configuration registers.
The 4-bit command is shifted in LSb first. The read is
executed during the next 8 clocks, then shifted out on
PGD during the last 8 clocks, LSb to MSb. A delay of
TABLE 4-1:
READ CODE MEMORY SEQUENCE
4-Bit
Command
Data Payload
Core Instruction
Step 1: Set Table Pointer.
0000
0000
0000
0000
0000
0000
0E
6E
0E
6E
0E
6E
<Addr[21:16]>
F8
<Addr[15:8]>
F7
<Addr[7:0]>
F6
MOVLW
MOVWF
MOVLW
MOVWF
MOVLW
MOVWF
Addr[21:16]
TBLPTRU
<Addr[15:8]>
TBLPTRH
<Addr[7:0]>
TBLPTRL
Step 2: Read memory and then shift out on PGD, LSb to MSb.
1001
00 00
TABLE READ, POST-INCREMENT INSTRUCTION TIMING (1001)
FIGURE 4-1:
1
TBLRD *+
2
3
4
1
2
3
4
5
6
7
9
8
10
11
12
13
14
15
1
16
2
3
4
PGC
P5
P5A
P6
P14
PGD
1
0
0
LSb 1
1
2
3
4
5
Shift Data Out
PGD = Input
 2009 Microchip Technology Inc.
PGD = Output
6
MSb
n
n
n
n
Fetch Next 4-Bit Command
PGD = Input
DS39644L-page 19
PIC18F6XJXX/8XJXX
4.2
Verify Code Memory and
Configuration Word
4.3
The verify step involves reading back the code memory
space and comparing it against the copy held in the
programmer’s buffer. Because the Flash Configuration
Words are stored at the end of program memory, it is
verified with the rest of the code at this time.
The verify process is shown in the flowchart in
Figure 4-2. Memory reads occur a single byte at a time,
so two bytes must be read to compare against the word
in the programmer’s buffer. Refer to Section 4.1
“Read Code Memory” for implementation details of
reading code memory.
Note:
Because the Flash Configuration Word
contains the device code protection bit,
code memory should be verified immediately after writing if code protection is
enabled. This is because the device will not
be readable or verifiable if a device Reset
occurs after the Flash Configuration Words
(and the CP0 bit) have been cleared.
FIGURE 4-2:
VERIFY CODE
MEMORY FLOW
Blank Check
The term, “Blank Check”, means to verify that the device
has no programmed memory cells. All memories must
be verified: code memory and Configuration bits. The
Device ID registers (3FFFFEh:3FFFFFh) should be
ignored.
A “blank” or “erased” memory cell will read as ‘1’, so
Blank Checking a device merely means to verify that all
bytes read as FFh. The overall process flow is shown
in Figure 4-3.
Note:
Following a device Bulk Erase, the Configuration Words will read as shown in
Table 5-2.
Given that Blank Checking is merely code verification
with FFh expect data, refer to Section 4.2 “Verify Code
Memory and Configuration Word” for implementation
details.
FIGURE 4-3:
BLANK CHECK FLOW
Start
Blank Check Device
Start
Is
Device
Blank?
Set TBLPTR = 0
Yes
Continue
No
Abort
Read Low Byte
with Post-Increment
Read High Byte
with Post-Increment
Does
Word = Expect
Data?
No
Failure,
Report
Error
Yes
No
All
Code Memory
Verified?
Yes
Done
DS39644L-page 20
 2009 Microchip Technology Inc.
PIC18F6XJXX/8XJXX
5.0
CONFIGURATION WORD
The Configuration Words of the PIC18F6XJXX/8XJXX
devices are implemented as volatile memory registers, as
opposed to the programmable nonvolatile memory used
in other PIC18 devices. All of the Configuration registers
(CONFIG1L, CONFIG1H, CONFIG2L, CONFIG2H,
CONFIG3L and CONFIG3H) are automatically loaded
following each device Reset.
The data for these registers is taken from the four Flash
Configuration Words located at the end of program
memory. Configuration data is stored in order, starting
with CONFIG1L in the lowest Flash address and
ending with CONFIG4H in the last address. The
mapping to specific Configuration Words is shown in
Table 5-1. While four words are reserved in program
memory, only three words (CONFIG1L through
CONFIG3H) are used for device configuration. Users
should always reserve these locations for
Configuration Word data and write their application
code accordingly.
The upper four bits of each Flash Configuration Word
should always be stored in program memory as ‘1111’.
This is done so these program memory addresses will
always be ‘1111 xxxx xxxx xxxx’ and interpreted
as a NOP instruction if they were ever to be executed.
Because the corresponding bits in the Configuration
Words are unimplemented, they will not change the
device’s configuration.
TABLE 5-1:
MAPPING OF THE FLASH
CONFIGURATION WORDS TO
THE CONFIGURATION
REGISTERS
Code Space
Address(1)
Configuration
Register
Address
XXXF8h
300000h
CONFIG1H
XXXF9h
300001h
CONFIG2L
XXXFAh
300002h
Configuration
Byte
CONFIG1L
CONFIG2H
XXXFBh
300003h
CONFIG3L
XXXFCh
300004h
CONFIG3H
XXXFDh
300005h
CONFIG4L(2)
XXXFEh
300006h
CONFIG4H(2)
XXXFFh
300007h
Note 1:
2:
See Table 2-2 for the complete addresses
within code space for specific devices and
memory sizes.
Unimplemented in PIC18F6XJXX/8XJXX
devices.
The Configuration and Device ID registers are
summarized in Table 5-2. A listing of the individual
Configuration bits and their options is provided in
Table 5-3.
 2009 Microchip Technology Inc.
DS39644L-page 21
PIC18F6XJXX/8XJXX
TABLE 5-2:
CONFIGURATION BITS AND DEVICE IDs
File Name
300000h CONFIG1L
Bit 7
Bit 6
Bit 5
Bit 4
DEBUG
XINST
STVREN
—
—
DEBUG
XINST
STVREN
—
PLLDIV2(1)
(2)
300001h CONFIG1H
300002h CONFIG2L
300003h CONFIG2H
300004h CONFIG3L
300005h CONFIG3H
3FFFFEh DEVID1
3FFFFFh DEVID2(5)
Legend:
Note 1:
2:
3:
4:
5:
6:
7:
8:
9:
10:
—
(2)
—
—
—(2)
—(2)
—(2)
(2)
Bit 2
Default/
Unprogrammed
Value
Bit 1
Bit 0
—
—
WDTEN
111- ---1
PLLDIV1(1)
PLLDIV0(1)
WDTEN
111- 1111(1)
—
—
(3)
CP0
—
—
—(2)
—(3)
CP0
CPUDIV1(1)
CPUDIV0(1)
---- 01----- 0111(1)
IESO
FCMEN
—
—
—
FOSC2
FOSC1
FOSC0
11-- -111
IESO
FCMEN
—
LPT1OSC(9)
T1DIG(9)
FOSC2
FOSC1
FOSC0
11-1 1111
—(2)
—(2)
—(2)
—(2)
WDTPS3
WDTPS2
WDTPS1
WDTPS0
---- 1111
EMB0(4,10)
EASHFT(4,10)
—
—
—
---- ----
WAIT
(4,10)
BW
(4,10)
(4,10)
EMB1
—
—
—
—
—
—
RTCOSC
—
---- --1-
—(2)
—(2)
—(2)
—(2)
—
—
ECCPMX(4,7,8)
CCP2MX
---- --11
—(2)
—(2)
—(2)
—(2)
MSSPSEL(6)
PMPMX(7)
ECCPMX(4,7,8)
CCP2MX
---- 1111(7)
(2)
(2)
(2)
(2)
(6)
(4,7,8)
CCP2MX
---- 1-11(6)
—
(5)
(2)
Bit 3
—
—
—
MSSPSEL
—
ECCPMX
DEV2
DEV1
DEV0
REV4
REV3
REV2
REV1
REV0
See Table 5-4
DEV10
DEV9
DEV8
DEV7
DEV6
DEV5
DEV4
DEV3
See Table 5-4
x = unknown, u = unchanged, — = unimplemented, q = value depends on condition. Shaded cells are unimplemented, read as ‘0’.
Implemented in PIC18F6XJ5X/8XJ5X devices only.
The value of these bits in program memory should always be ‘1’. This ensures that the location is executed as a NOP if it is accidentally
executed.
This bit should always be maintained as ‘0’.
Implemented in 80-pin devices only. On 64-pin devices, these bits are reserved and should always be maintained as ‘1’.
DEVID registers are read-only and cannot be programmed by the user.
Implemented in PIC18F6XJ5X/8XJ5X and PIC18F66J11/66J16/67J11/86J11/86J16/87J11 only.
Implemented in PIC18F8XJ5X and PIC18F86J11/86J16/87J11 only.
Implemented in PIC18FXXJ10/8XJ15 devices only.
Implemented in PIC18FX79X and PIC18FX6J9X.
Not implemented in PIC18F8XJ9X.
DS39644L-page 22
 2009 Microchip Technology Inc.
PIC18F6XJXX/8XJXX
TABLE 5-3:
Bit Name
PIC18F6XJXX/8XJXX BIT DESCRIPTIONS
Configuration
Words
Description
Background Debugger Enable bit
1 = Background debugger disabled, RB6 and RB7 configured as general
purpose I/O pins
0 = Background debugger enabled, RB6 and RB7 are dedicated to In-Circuit Debug
XINST
CONFIG1L Extended Instruction Set Enable bit
1 = Instruction set extension and Indexed Addressing mode enabled
0 = Instruction set extension and Indexed Addressing mode disabled
(Legacy mode)
STVREN
CONFIG1L Stack Overflow/Underflow Reset Enable bit
1 = Reset on stack overflow/underflow enabled
0 = Reset on stack overflow/underflow disabled
PLLDIV<2:0>(1)
CONFIG1L Oscillator Selection bits
111 = No divide – oscillator used directly (4 MHz input)
110 = Oscillator divided by 2 (8 MHz input)
101 = Oscillator divided by 3 (12 MHz input)
100 = Oscillator divided by 4 (16 MHz input)
011 = Oscillator divided by 5 (20 MHz input)
010 = Oscillator divided by 6 (24 MHz input)
001 = Oscillator divided by 10 (40 MHz input)
000 = Oscillator divided by 12 (48 MHz input)
WDTEN
CONFIG1L Watchdog Timer Enable bit
1 = WDT enabled
0 = WDT disabled (control is placed on the SWDTEN bit)
CP0
CONFIG1H Code Protection bit
1 = Program memory is not code-protected
0 = Program memory is code-protected
CONFIG1H CPU System Clock Selection bits
CPUDIV<1:0>(1)
11 = No CPU system clock divide
10 = CPU system clock divided by 2
01 = CPU system clock divided by 3
00 = CPU system clock divided by 6
IESO
CONFIG2L Internal/External Oscillator Switchover bit
1 = Oscillator Switchover mode enabled
0 = Oscillator Switchover mode disabled
FCMEN
CONFIG2L Fail-Safe Clock Monitor Enable bit
1 = Fail-Safe Clock Monitor enabled
0 = Fail-Safe Clock Monitor disabled
FOSC2
CONFIG2L Primary Oscillator Select bit
1 = Default primary oscillator on start-up is EC or HS, depending on the settings
of FOSC<1:0>; INTRC selected when OSCCON<1:0> = 11
0 = Default primary oscillator on start-up is INTRC; INTRC is also selected when
OSCCON<1:0> = 11 or 00
(4)
LPT1OSC
CONFIG2L
Low-Power Timer1 Oscillator Enable bit
1 = High-power oscillator selected for Timer1
0 = Lower power oscillator selected for Timer1
CONFIG2L Secondary Clock Source T1OSCEN Enforcement bit
T1DIG(4)
1 = T13CKI input is available as secondary clock source without enabling T1OSCEN
0 = T13CKI input is not available as secondary clock source without enabling
T1OSCEN
Note 1: Implemented in PIC18FXXJ5X devices only.
2: Implemented in PIC18F66J11/66J16/67J11/86J11/86J16/87J11 devices only.
3: Implemented in 80-pin devices only.
4: Implemented in PIC18FX6J9X and PIC18FX7J9X.
DEBUG
CONFIG1L
 2009 Microchip Technology Inc.
DS39644L-page 23
PIC18F6XJXX/8XJXX
TABLE 5-3:
Bit Name
PIC18F6XJXX/8XJXX BIT DESCRIPTIONS (CONTINUED)
Configuration
Words
FOSC<1:0>
CONFIG2L
FOSC<1:0>
CONFIG2L
Description
Oscillator Selection bits
11 = EC oscillator, PLL enabled and under software control, CLKO function on OSC2
10 = EC oscillator, CLKO function on OSC2
01 = HS oscillator, PLL enabled and under software control
00 = HS oscillator
Oscillator Selection bits(1)
111 = ECPLL oscillator with PLL enabled, CLKO on RA6 and port function
on RA7, ECPLL oscillator used by USB
110 = EC oscillator with CLKO on RA6 and port function on RA7,
EC oscillator used by USB
101 = HSPLL oscillator with PLL enabled
100 = HS oscillator, HS oscillator used by USB
011 = INTOSCPLLO oscillator with INTOSC and PLL enabled, CLKO on
RA6 and port function on RA7
010 = INTOSCPLL oscillator, port function on RA6 and RA7
001 = INTOSCO internal oscillator block (INTRC/INTOSC) with CLKO on
RA6, port function on RA7
000 = INTOSC internal oscillator block (INTRC/INTOSC), port function on
RA6 and RA7
Oscillator Selection bits(2)
111 = ECPLL oscillator with 4xPLL enabled
110 = EC oscillator
101 = HSPLL oscillator with 4xPLL enabled
100 = HS oscillator
011 = INTOSCPLLO, INTOSC with 4xPLL, CLKO on RA6 and port function
on RA7
010 = INTOSCPLL, INTOSC with 4xPLL oscillator, port function on RA6
and RA7
001 = INTOSCO internal oscillator block (INTRC/INTOSC) with CLKO on
RA6, port function on RA7
000 = INTOSC internal oscillator block (INTRC/INTOSC), port function on
RA6 and RA7
Note 1:
2:
3:
4:
Oscillator Selection bits(4)
111 = EC oscillator with PLL enabled, CLKO on RA6 (ECPLL)
110 = EC oscillator, CLKO on RA6 (EC)
101 = HS oscillator with PLL enabled (HSPLL)
100 = HS oscillator
011 = Internal oscillator with PLL enabled, CLKO on RA6, port function on RA7
(INTOSCPLLO)
010 = Internal oscillator block, CLKO on RA6, port function on RA7 (INTOSCO)
001 = Internal oscillator with PLL enabled, port function on RA6 and RA7
(INTOSCPLL)
000 = Internal oscillator block, port function on RA6 and RA7 (INTIOSC)
Implemented in PIC18FXXJ5X devices only.
Implemented in PIC18F66J11/66J16/67J11/86J11/86J16/87J11 devices only.
Implemented in 80-pin devices only.
Implemented in PIC18FX6J9X and PIC18FX7J9X.
DS39644L-page 24
 2009 Microchip Technology Inc.
PIC18F6XJXX/8XJXX
TABLE 5-3:
Bit Name
WDTPS<3:0>
PIC18F6XJXX/8XJXX BIT DESCRIPTIONS (CONTINUED)
Configuration
Words
Description
CONFIG2H
Watchdog Timer Postscale Select bits
1111 = 1:32,768
1110 = 1:16,384
1101 = 1:8,192
1100 = 1:4,096
1011 = 1:2,048
1010 = 1:1,024
1001 = 1:512
1000 = 1:256
0111 = 1:128
0110 = 1:64
0101 = 1:32
0100 = 1:16
0011 = 1:8
0010 = 1:4
0001 = 1:2
0000 = 1:1
WAIT
CONFIG3L External Bus Wait Enable bit
1 = Wait states for operations on external memory bus disabled
0 = Wait states for operations on external memory bus enabled
BW
CONFIG3L Data Bus Width Select bit
1 = 16-Bit External Bus mode
0 = 8-Bit External Bus mode
EMB<1:0>
CONFIG3L External Memory Bus Configuration bits
00 = Extended Microcontroller mode, 20-Bit Addressing mode
01 = Extended Microcontroller mode,16-Bit Addressing mode
10 = Extended Microcontroller mode,12-Bit Addressing mode
11 = Microcontroller mode – external bus disabled
EASHFT
CONFIG3L External Address Bus Shift Enable bit
1 = Address shifting enabled; address on external bus is offset to start at 000000h
0 = Address shifting disabled; address on external bus reflects the PC value
RTCSOSC(4)
CONFIG3L RTCC Reference Clock Select bit
1 = RTCC uses T1OSC/SOSC as a reference clock
0 = RTCC uses INTOSC/LPRC as a reference clock
CONFIG3H MSSP Address Select bit
MSSPSEL(1,2)
1 = 7-Bit Address Mask mode
0 = 5-Bit Address Mask mode
(1,2,3)
CONFIG3H PMP Pin Select bit
PMPMX
1 = PMP port pins connected to EMB
0 = PMP port pins not connected to EMB
ECCPMX
CONFIG3H ECCP MUX bit
1 = ECCP1 outputs (P1B/P1C) are multiplexed with RE6 and RE5;
ECCP3 outputs (P3B/P3C) are multiplexed with RE4 and RE3
0 = ECCP1 outputs (P1B/P1C) are multiplexed with RH7 and RH6;
ECCP3 outputs (P3B/P3C) are multiplexed with RH5 and RH4
CCP2MX
CONFIG3H CCP2 MUX bit
1 = ECCP2/P2A is multiplexed with RC1
0 = ECCP2/P2A is multiplexed with RE7 in Microcontroller mode (all devices)
or with RB3 in Extended Microcontroller mode (80-pin devices only)
Note 1: Implemented in PIC18FXXJ5X devices only.
2: Implemented in PIC18F66J11/66J16/67J11/86J11/86J16/87J11 devices only.
3: Implemented in 80-pin devices only.
4: Implemented in PIC18FX6J9X and PIC18FX7J9X.
 2009 Microchip Technology Inc.
DS39644L-page 25
PIC18F6XJXX/8XJXX
5.1
Device ID Word
FIGURE 5-1:
The Device ID word for PIC18F6XJXX/8XJXX devices
is located at 3FFFFEh:3FFFFFh. These read-only bits
may be used by the programmer to identify what device
type is being programmed and read out normally, even
after code protection has been enabled. The process
for reading the Device IDs is shown in Figure 5-1. A
complete
list
of
Device
ID
values
for
PIC18F6XJXX/8XJXX devices is presented in
Table 5-4.
READ DEVICE ID WORD FLOW
Start
Set TBLPTR = 3FFFFE
Read Low Byte
with Post-Increment
Read High Byte
with Post-Increment
Done
TABLE 5-4:
DEVICE ID VALUE
Device
Device ID Value
DEVID2
DEVID1
PIC18F63J11
39h
000x xxxx
PIC18F63J90
38h
000x xxxx
PIC18F64J11
39h
001x xxxx
PIC18F64J90
38h
001x xxxx
PIC18F65J10
15h
001x xxxx
PIC18F65J11
39h
011x xxxx
PIC18F65J15
15h
010x xxxx
PIC18F65J50
41h
000x xxxx
PIC18F65J90
38h
011x xxxx
PIC18F66J10
15h
011x xxxx
PIC18F66J11
44h
010x xxxx
PIC18F66J15
15h
100x xxxx
PIC18F66J16
44h
011x xxxx
PIC18F66J50
41h
010x xxxx
PIC18F66J55
41h
011x xxxx
PIC18F66J90
50h
000x xxxx
PIC18F66J93
50h
010x xxxx
Legend: The ‘x’s in DEVID1 are reserved for the device revision code.
DS39644L-page 26
 2009 Microchip Technology Inc.
PIC18F6XJXX/8XJXX
TABLE 5-4:
DEVICE ID VALUE (CONTINUED)
Device
Device ID Value
DEVID2
DEVID1
PIC18F67J10
15h
101x xxxx
PIC18F67J11
44h
100x xxxx
PIC18F67J50
41h
100x xxxx
PIC18F67J90
50h
001x xxxx
PIC18F67J93
50h
011x xxxx
PIC18F83J11
39h
100x xxxx
PIC18F83J90
38h
100x xxxx
PIC18F84J11
39h
101x xxxx
PIC18F84J90
38h
101x xxxx
PIC18F85J10
15h
111x xxxx
PIC18F85J11
39h
111x xxxx
PIC18F85J15
17h
000x xxxx
PIC18F85J50
41h
101x xxxx
PIC18F85J90
38h
111x xxxx
PIC18F86J10
17h
001x xxxx
PIC18F86J11
44h
111x xxxx
PIC18F86J15
17h
010x xxxx
PIC18F86J16
45h
000x xxxx
PIC18F86J50
41h
111x xxxx
PIC18F86J55
42h
000x xxxx
PIC18F86J72
50h
010x xxxx
PIC18F86J90
50h
100x xxxx
PIC18F86J93
50h
110x xxxx
PIC18F87J10
17h
011x xxxx
PIC18F87J11
45h
001x xxxx
PIC18F87J50
42h
001x xxxx
PIC18F87J72
50h
011x xxxx
PIC18F87J90
50h
101x xxxx
PIC18F87J93
50h
111x xxxx
Legend: The ‘x’s in DEVID1 are reserved for the device revision code.
 2009 Microchip Technology Inc.
DS39644L-page 27
PIC18F6XJXX/8XJXX
5.2
Checksum Computation
The checksum is calculated by summing the following:
Note:
• The contents of all code memory locations
• The Configuration Block (CFGB), appropriately
masked
• ID locations
The Least Significant 16 bits of this sum are the
checksum.
Table 5-5 (pages 28 through 30) describes how to
calculate the checksum for each device.
TABLE 5-5:
Family
The checksum calculation differs depending on the code-protect setting. Since the
code memory locations read out differently
depending on the code-protect setting, the
table describes how to manipulate the
actual code memory values to simulate the
values that would be read from a protected
device. When calculating a checksum by
reading a device, the entire code memory
can simply be read and summed. The
Configuration Word and ID locations can
always be read.
CHECKSUM EQUATION FOR PIC18F6XJXX/8XJXX
Device
Read Code Protection
Checksum Computation
Disabled
CFGB60 + SUM(0000:1FF7h)
Enabled
0000h
Disabled
CFGB60 + SUM(0000:3FF7h)
PIC18F64J11
Enabled
0000h
Disabled
CFGB60 + SUM(0000:5FF7h)
PIC18F64J16
Enabled
0000h
Disabled
CFGB60 + SUM(0000:7FF7h)
PIC18F65J11
Enabled
0000h
PIC18F85J11
Disabled
CFGB80 + SUM(0000:1FF7h)
PIC18F83J11
Enabled
0000h
Disabled
CFGB80 + SUM(0000:3FF7h)
PIC18F84J11
Enabled
0000h
Disabled
CFGB80 + SUM(0000:5FF7h)
PIC18F84J16
Enabled
0000h
Disabled
CFGB80 + SUM(0000:7FF7h)
PIC18F85J11
Enabled
0000h
CFGB80 = Byte sum of [(CW1 & 0CE1h) + (CW2 & 0FC7h) + (CW3 & 01F8h)]
CFGB60 = Byte sum of [(CW1 & 0CE1h) + (CW2 & 0FC7h) + (CW3 & 0100h)]
Legend: Item
Description
SUM(a:b) = Byte sum of locations a to b inclusive (all 3 bytes of code memory)
+
= Addition
CW
= Configuration Word
CFGB
= Configuration Block (Masked)
Note: CW3 address is the last location – 2 of implemented program memory; CW2 is the last location – 4;
CW1 is the last location – 6.
PIC18F63J11
DS39644L-page 28
 2009 Microchip Technology Inc.
PIC18F6XJXX/8XJXX
TABLE 5-5:
Family
CHECKSUM EQUATION FOR PIC18F6XJXX/8XJXX (CONTINUED)
Device
Read Code Protection
Checksum Computation
Disabled
CFGB + SUM(0000:1FF7h)
Enabled
0000h
Disabled
CFGB + SUM(0000:3FF7h)
PIC18F64J90
Enabled
0000h
Disabled
CFGB + SUM(0000:5FF7h)
PIC18F64J95
Enabled
0000h
Disabled
CFGB + SUM(0000:7FF7h)
PIC18F65J90
Enabled
0000h
PIC18F85J90
Disabled
CFGB + SUM(0000:1FF7h)
PIC18F83J90
Enabled
0000h
Disabled
CFGB + SUM(0000:3FF7h)
PIC18F84J90
Enabled
0000h
Disabled
CFGB + SUM(0000:5FF7h)
PIC18F84J95
Enabled
0000h
Disabled
CFGB + SUM(0000:7FF7h)
PIC18F85J90
Enabled
0000h
CFGB = Byte sum of [(CW1 & 0CE1h) + (CW2 & 0FC7h) + (CW3 & 0100h)]
Disabled
CFGB60 + SUM(0000:7FF7h)
PIC18F65J10
Enabled
0000h
Disabled
CFGB60 + SUM(0000:BFF7h)
PIC18F65J15
Enabled
0000h
Disabled
CFGB60 + SUM(0000:FFF7h)
PIC18F66J10
Enabled
0000h
Disabled
CFGB60 + SUM(00000:17FF7h)
PIC18F66J15
Enabled
0000h
Disabled
CFGB60 + SUM(00000:1FFF7h)
PIC18F67J10
Enabled
0000h
PIC18F87J10
Disabled
CFGB80 + SUM(0000:7FF7h)
PIC18F85J10
Enabled
0000h
Disabled
CFGB80 + SUM(0000:BFF7h)
PIC18F85J15
Enabled
0000h
Disabled
CFGB80 + SUM(0000:FFF7h)
PIC18F86J10
Enabled
0000h
Disabled
CFGB80 + SUM(00000:17FF7h)
PIC18F86J15
Enabled
0000h
Disabled
CFGB80 + SUM(00000:1FFF7h)
PIC18F87J10
Enabled
0000h
CFGB80 = Byte sum of [(CW1 & 04E1h) + (CW2 & 0FC7h) + (CW3 & 03F8h)]
CFGB60 = Byte sum of [(CW1 & 04E1h) + (CW2 & 0FC7h) + (CW3 & 0100h)]
Description
Legend: Item
SUM(a:b) = Byte sum of locations a to b inclusive (all 3 bytes of code memory)
+
= Addition
CW
= Configuration Word
CFGB
= Configuration Block (Masked)
Note: CW3 address is the last location – 2 of implemented program memory; CW2 is the last location – 4;
CW1 is the last location – 6.
PIC18F63J90
 2009 Microchip Technology Inc.
DS39644L-page 29
PIC18F6XJXX/8XJXX
TABLE 5-5:
Family
CHECKSUM EQUATION FOR PIC18F6XJXX/8XJXX (CONTINUED)
Device
Read Code Protection
Checksum Computation
Disabled
CFGB60 + SUM(0000:BFF7h)
Enabled
0000h
Disabled
CFGB60 + SUM(0000:FFF7h)
PIC18F66J11
Enabled
0000h
Disabled
CFGB60 + SUM(00000:17FF7h)
PIC18F66J16
Enabled
0000h
Disabled
CFGB60 + SUM(00000:1FFF7h)
PIC18F67J11
Enabled
0000h
PIC18F87J11
Disabled
CFGB80 + SUM(0000:BFF7h)
PIC18F85J16
Enabled
0000h
Disabled
CFGB80 + SUM(0000:FFF7h)
PIC18F86J11
Enabled
0000h
Disabled
CFGB80 + SUM(00000:17FF7h)
PIC18F86J16
Enabled
0000h
Disabled
CFGB80 + SUM(00000:1FFF7h)
PIC18F87J11
Enabled
0000h
CFGB80 = Byte sum of [(CW1 & 07E1h) + (CW2 & 0FC7h) + (CW3 & 0FF8h)]
CFGB60 = Byte sum of [(CW1 & 07E1h) + (CW2 & 0FC7h) + (CW3 & 0900h)]
Legend: Item
Description
SUM(a:b) = Byte sum of locations a to b inclusive (all 3 bytes of code memory)
+
= Addition
CW
= Configuration Word
CFGB
= Configuration Block (Masked)
Note: CW3 address is the last location – 2 of implemented program memory; CW2 is the last location – 4;
CW1 is the last location – 6.
PIC18F65J16
DS39644L-page 30
 2009 Microchip Technology Inc.
PIC18F6XJXX/8XJXX
TABLE 5-5:
Family
CHECKSUM EQUATION FOR PIC18F6XJXX/8XJXX (CONTINUED)
Device
Read Code Protection
Checksum Computation
Disabled
CFGB60 + SUM(0000:7FF7h)
Enabled
0000h
Disabled
CFGB60 + SUM(0000:BFF7h)
PIC18F65J55
Enabled
0000h
Disabled
CFGB60 + SUM(0000:FFF7h)
PIC18F66J50
Enabled
0000h
Disabled
CFGB60 + SUM(00000:17FF7h)
PIC18F66J55
Enabled
0000h
Disabled
CFGB60 + SUM(00000:1FFF7h)
PIC18F67J50
Enabled
0000h
PIC18F87J50
Disabled
CFGB80 + SUM(0000:7FF7h)
PIC18F85J50
Enabled
0000h
Disabled
CFGB80 + SUM(0000:BFF7h)
PIC18F85J55
Enabled
0000h
Disabled
CFGB80 + SUM(0000:FFF7h)
PIC18F86J50
Enabled
0000h
Disabled
CFGB80 + SUM(00000:17FF7h)
PIC18F86J55
Enabled
0000h
Disabled
CFGB80 + SUM(00000:1FFF7h)
PIC18F87J50
Enabled
0000h
CFGB80 = Byte sum of [(CW1 & 07FFh) + (CW2 & 0FC7h) + (CW3 & 0FF8h)]
CFGB60 = Byte sum of [(CW1 & 07FFh) + (CW2 & 0FC7h) + (CW3 & 0900h)]
Disabled
CFGB + SUM(0000:FFF7h)
PIC18F66J90
Enabled
0000h
Disabled
CFGB + SUM(0000:FFF7h)
PIC18F66J93
Enabled
0000h
Disabled
CFGB + SUM(0000:1FFF7h)
PIC18F67J90
Enabled
0000h
Disabled
CFGB + SUM(0000:1FFF7h)
PIC18F67J93
Enabled
0000h
Disabled
CFGB + SUM(0000:FFF7h)
PIC18F86J72
Enabled
0000h
PIC18F87J90
Disabled
CFGB + SUM(00000:FFF7h)
PIC18F86J90
Enabled
0000h
Disabled
CFGB + SUM(0000:FFF7h)
PIC18F86J93
Enabled
0000h
Disabled
CFGB + SUM(0000:1FFF7h
PIC18F87J72
Enabled
0000h
Disabled
CFGB + SUM(00000:1FFF7h)
PIC18F87J90
Enabled
0000h
Disabled
CFGB + SUM(0000:1FFF7h)
PIC18F87J93
Enabled
0000h
CFGB = Byte sum of [(CW1 & 04E1h) + (CW2 & 0FDFh) + (CW3 & 0102h)]
Description
Legend: Item
SUM(a:b) = Byte sum of locations a to b inclusive (all 3 bytes of code memory)
+
= Addition
CW
= Configuration Word
CFGB
= Configuration Block (Masked)
Note: CW3 address is the last location – 2 of implemented program memory; CW2 is the last location – 4;
CW1 is the last location – 6.
PIC18F65J50
 2009 Microchip Technology Inc.
DS39644L-page 31
PIC18F6XJXX/8XJXX
6.0
AC/DC CHARACTERISTICS AND TIMING REQUIREMENTS
FOR PROGRAM/VERIFY TEST MODE
Standard Operating Conditions
Operating Temperature: 25C is recommended
Param
Symbol
No.
Characteristic
VDDCORE External Supply Voltage for Microcontroller
Core
D111
VDD
Supply Voltage During
Programming
Min
Max
Units
2.3
2.70
V
(Note 1)
3.60
V
Normal programming (Note 2)
ENVREG = VSS VDDCORE
ENVREG = VDD
2.65
Conditions
3.60
D112
IPP
Programming Current on MCLR
—
5
A
D113
IDDP
Supply Current During Programming
—
10
mA
V
D031
VIL
Input Low Voltage
VSS
0.2 VDD
D041
VIH
Input High Voltage
0.8 VDD
VDD
V
D080
VOL
Output Low Voltage
—
0.4
V
D090
VOH
Output High Voltage
2.4
—
V
IOH = -6.0 mA @ 3.3V
D012
CIO
Capacitive Loading on I/O pin (PGD)
—
50
pF
To meet AC specifications
CF
Filter Capacitor Value on VCAP
4.7
10
F
Required for controller core
operation when voltage
regulator is enabled
P2
TPGC
Serial Clock (PGC) Period
100
—
ns
P2A
TPGCL
Serial Clock (PGC) Low Time
40
—
ns
P2B
TPGCH
Serial Clock (PGC) High Time
40
—
ns
P3
TSET1
Input Data Setup Time to Serial Clock 
15
—
ns
P4
THLD1
Input Data Hold Time from PGC
15
—
ns
P5
TDLY1
Delay between 4-Bit Command and
Command Operand
40
—
ns
P5A
TDLY1A
Delay between 4-Bit Command Operand and
Next 4-Bit Command
40
—
ns
P6
TDLY2
Delay between Last PGC  of Command
Byte to First PGC  of Read of Data Word
20
—
ns
P9
TDLY5
Delay to Allow Block Programming to Occur
3.4
—
ms
1.2
—
ms
P10
TDLY6
Delay to Allow Row Erase to Occur
49
—
ms
P11
TDLY7
Delay to allow Bulk Erase to Occur
475
—
ms
Note 1:
2:
IOL = 8.5 mA @ 3.3V
For PIC18F87J10,
PIC18F85J90 and
PIC18F85J11 family parts
For PIC18F87J50,
PIC18F87J11, PIC18F87J90,
PIC18F87J93 and
PIC18F87J72 family parts
VDDCORE must be supplied to the VDDCORE/VCAP pin if the on-chip voltage regulator is disabled. See
Section 2.1.1 “On-Chip Voltage Regulator” for more information.
VDD must also be supplied to the AVDD pins during programming and to the ENVREG pin if the on-chip voltage
regulator is used. AVDD and AVSS should always be within ±0.3V of VDD and VSS, respectively.
DS39644L-page 32
 2009 Microchip Technology Inc.
PIC18F6XJXX/8XJXX
6.0
AC/DC CHARACTERISTICS AND TIMING REQUIREMENTS
FOR PROGRAM/VERIFY TEST MODE (CONTINUED)
Standard Operating Conditions
Operating Temperature: 25C is recommended
Param
Symbol
No.
Characteristic
Min
Max
Units
P12
THLD2
Input Data Hold Time from MCLR 
400
—
s
P13
TSET2
VDD Setup Time to MCLR 
100
—
ns
P14
TVALID
Data Out Valid from PGC 
10
—
ns
P16
TDLY8
Delay between Last PGC  and MCLR 
20
—
ns
P19
TKEY1
Delay from First MCLR to First PGC for
Key Sequence on PGD
1
—
ms
P20
TKEY2
Delay from Last PGC for Key Sequence on
PGD to Second MCLR 
40
—
ns
Note 1:
2:
Conditions
VDDCORE must be supplied to the VDDCORE/VCAP pin if the on-chip voltage regulator is disabled. See
Section 2.1.1 “On-Chip Voltage Regulator” for more information.
VDD must also be supplied to the AVDD pins during programming and to the ENVREG pin if the on-chip voltage
regulator is used. AVDD and AVSS should always be within ±0.3V of VDD and VSS, respectively.
 2009 Microchip Technology Inc.
DS39644L-page 33
PIC18F6XJXX/8XJXX
NOTES:
DS39644L-page 34
 2009 Microchip Technology Inc.
Note the following details of the code protection feature on Microchip devices:
•
Microchip products meet the specification contained in their particular Microchip Data Sheet.
•
Microchip believes that its family of products is one of the most secure families of its kind on the market today, when used in the
intended manner and under normal conditions.
•
There are dishonest and possibly illegal methods used to breach the code protection feature. All of these methods, to our
knowledge, require using the Microchip products in a manner outside the operating specifications contained in Microchip’s Data
Sheets. Most likely, the person doing so is engaged in theft of intellectual property.
•
Microchip is willing to work with the customer who is concerned about the integrity of their code.
•
Neither Microchip nor any other semiconductor manufacturer can guarantee the security of their code. Code protection does not
mean that we are guaranteeing the product as “unbreakable.”
Code protection is constantly evolving. We at Microchip are committed to continuously improving the code protection features of our
products. Attempts to break Microchip’s code protection feature may be a violation of the Digital Millennium Copyright Act. If such acts
allow unauthorized access to your software or other copyrighted work, you may have a right to sue for relief under that Act.
Information contained in this publication regarding device
applications and the like is provided only for your convenience
and may be superseded by updates. It is your responsibility to
ensure that your application meets with your specifications.
MICROCHIP MAKES NO REPRESENTATIONS OR
WARRANTIES OF ANY KIND WHETHER EXPRESS OR
IMPLIED, WRITTEN OR ORAL, STATUTORY OR
OTHERWISE, RELATED TO THE INFORMATION,
INCLUDING BUT NOT LIMITED TO ITS CONDITION,
QUALITY, PERFORMANCE, MERCHANTABILITY OR
FITNESS FOR PURPOSE. Microchip disclaims all liability
arising from this information and its use. Use of Microchip
devices in life support and/or safety applications is entirely at
the buyer’s risk, and the buyer agrees to defend, indemnify and
hold harmless Microchip from any and all damages, claims,
suits, or expenses resulting from such use. No licenses are
conveyed, implicitly or otherwise, under any Microchip
intellectual property rights.
Trademarks
The Microchip name and logo, the Microchip logo, dsPIC,
KEELOQ, KEELOQ logo, MPLAB, PIC, PICmicro, PICSTART,
rfPIC and UNI/O are registered trademarks of Microchip
Technology Incorporated in the U.S.A. and other countries.
FilterLab, Hampshire, HI-TECH C, Linear Active Thermistor,
MXDEV, MXLAB, SEEVAL and The Embedded Control
Solutions Company are registered trademarks of Microchip
Technology Incorporated in the U.S.A.
Analog-for-the-Digital Age, Application Maestro, CodeGuard,
dsPICDEM, dsPICDEM.net, dsPICworks, dsSPEAK, ECAN,
ECONOMONITOR, FanSense, HI-TIDE, In-Circuit Serial
Programming, ICSP, Mindi, MiWi, MPASM, MPLAB Certified
logo, MPLIB, MPLINK, mTouch, Octopus, Omniscient Code
Generation, PICC, PICC-18, PICDEM, PICDEM.net, PICkit,
PICtail, PIC32 logo, REAL ICE, rfLAB, Select Mode, Total
Endurance, TSHARC, UniWinDriver, WiperLock and ZENA
are trademarks of Microchip Technology Incorporated in the
U.S.A. and other countries.
SQTP is a service mark of Microchip Technology Incorporated
in the U.S.A.
All other trademarks mentioned herein are property of their
respective companies.
© 2009, Microchip Technology Incorporated, Printed in the
U.S.A., All Rights Reserved.
Printed on recycled paper.
Microchip received ISO/TS-16949:2002 certification for its worldwide
headquarters, design and wafer fabrication facilities in Chandler and
Tempe, Arizona; Gresham, Oregon and design centers in California
and India. The Company’s quality system processes and procedures
are for its PIC® MCUs and dsPIC® DSCs, KEELOQ® code hopping
devices, Serial EEPROMs, microperipherals, nonvolatile memory and
analog products. In addition, Microchip’s quality system for the design
and manufacture of development systems is ISO 9001:2000 certified.
 2009 Microchip Technology Inc.
DS39644L-page 35
WORLDWIDE SALES AND SERVICE
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03/26/09
DS39644L-page 36
 2009 Microchip Technology Inc.