PIC18F64J11T-I/PT Microchip Technology, PIC18F64J11T-I/PT Datasheet - Page 65

• Manufacturer Part Number: PIC18F64J11T-I/PT
• Description: 16KB, Flash, 1024bytes-RAM, 51I/O, 8-bit Family,nanoWatt 64 TQFP 10x10x1mm T/R
• Manufacturer: Microchip Technology
• Series: PIC® 18Fr

Specifications of PIC18F64J11T-I/PT

• Core Processor: PIC
• Core Size: 8-Bit
• Speed: 40MHz
• Connectivity: I²C, SPI, UART/USART
• Peripherals: Brown-out Detect/Reset, LVD, POR, PWM, WDT
• Number Of I /o: 51
• Program Memory Size: 16KB (8K x 16)
• Program Memory Type: FLASH
• Ram Size: 1K x 8
• Voltage - Supply (vcc/vdd): 2 V ~ 3.6 V
• Data Converters: A/D 12x10b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 64-TFQFP
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• For Use With: MA180018 - MODULE PLUG-IN 18F85J11AC162079 - HEADER MPLAB ICD2 18F85J90 64/80AC164327 - MODULE SKT FOR 64TQFP
• Eeprom Size: -
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: PIC18F64J11T-I/PTTR

6.1.3
The 80-pin devices in this family can address up to a
total of 2 Mbytes of program memory. This is achieved
through the external memory bus. There are two
distinct operating modes available to the controllers:
• Microcontroller (MC)
• Extended Microcontroller (EMC)
The Program Memory mode is determined by setting
the EMB Configuration bits (CONFIG3L<5:4>), as
shown in Register 6-1. (See also Section 23.1
“Configuration Bits” for additional details on the
device Configuration bits.)
The Program Memory modes operate as follows:
• The Microcontroller Mode accesses only on-chip
REGISTER 6-1:
 2010 Microchip Technology Inc.
bit 7
Legend:
R = Readable bit
-n = Value when device is unprogrammed
bit 7
bit 6
bit 5:4
bit 3
bit 2-0
Note 1:
Flash memory. Attempts to read above the top of
on-chip memory causes a read of all ‘0’s (a NOP
instruction).
The Microcontroller mode is also the only operating
mode available to 64-pin devices.
R/WO-1
WAIT
CONFIG3L and its associated bits are implemented only in 80-pin devices.
PIC18F8XJ11 PROGRAM MEMORY
MODES
WAIT: External Bus Wait Enable bit
1 = Wait selections from WAIT<1:0> (MEMCON<5:4>) are unavailable and the device will not wait
0 = Wait is programmed by WAIT<1:0> (MEMCON<5:4>)
BW: Data Bus Width Select bit
1 = 16-Bit External Bus mode
0 = 8-Bit External Bus mode
EMB<1:0>: External Memory Bus Configuration bits
00 = Extended Microcontroller mode – 20-Bit Address mode
01 = Extended Microcontroller mode – 16-Bit Address mode
10 = Extended Microcontroller mode – 12-Bit Address mode
11 = Microcontroller mode – external bus disabled
EASHFT: External Address Bus Shift Enable bit
1 = Address shifting enabled – external address bus is shifted to start at 000000h
0 = Address shifting disabled – external address bus reflects the PC value
Unimplemented: Read as ‘0’
R/WO-1
BW
CONFIG3L: CONFIGURATION REGISTER 3 LOW (BYTE ADDRESS 300004h)
WO = Write-Once bit
R/WO-1
EMB1
R/WO-1
EMB0
U = Unimplemented bit, read as ‘0’
‘1’ = Bit is set
PIC18F85J11 FAMILY
EASHFT
R/WO-1
• The Extended Microcontroller Mode allows
The setting of the EMB Configuration bits also controls
the address bus width of the external memory bus. This
is covered in more detail in Section 8.0 “External
Memory Bus”.
In all modes, the microcontroller has complete access
to data RAM.
Figure 6-3 compares the memory maps of the different
Program Memory modes. The differences between
on-chip and external memory access limitations are
more fully explained in Table 6-2.
access to both internal and external program
memories as a single block. The device can
access its entire on-chip program memory; above
this, the device accesses external program
memory up to the 2-Mbyte program space limit.
Execution automatically switches between the
two memories as required.
U-0
—
‘0’ = Bit is cleared
U-0
—
DS39774D-page 65
U-0
—
bit 0
(1)