PIC18F4585-H/PT Microchip Technology, PIC18F4585-H/PT Datasheet - Page 359

• Manufacturer Part Number: PIC18F4585-H/PT
• Description: IC MCU 8BIT 48KB FLASH 44TQFP
• Manufacturer: Microchip Technology
• Series: PIC® 18Fr

Specifications of PIC18F4585-H/PT

• Core Processor: PIC
• Core Size: 8-Bit
• Speed: 25MHz
• Connectivity: CAN, I²C, SPI, UART/USART
• Peripherals: Brown-out Detect/Reset, HLVD, POR, PWM, WDT
• Number Of I /o: 36
• Program Memory Size: 48KB (24K x 16)
• Program Memory Type: FLASH
• Eeprom Size: 1K x 8
• Ram Size: 3.25K x 8
• Voltage - Supply (vcc/vdd): 4.2 V ~ 5.5 V
• Data Converters: A/D 11x10b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 150°C
• Package / Case: 44-TQFP
• Lead Free Status / Rohs Status: Lead free / RoHS Compliant

24.5
The overall structure of the code protection on the
PIC18 Flash devices differs significantly from other
PIC
The user program memory is divided into five blocks.
One of these is a boot block of 2 Kbytes. The remainder
of the memory is divided into four blocks on binary
boundaries.
FIGURE 24-5:
TABLE 24-3:
© 2007 Microchip Technology Inc.
300008h
300009h
30000Ah
30000Bh
30000Ch
30000Dh
Legend: Shaded cells are unimplemented.
®
devices.
File Name
*
Program Verification and
Code Protection
(PIC18F2585/4585)
Unimplemented in PIC18FX585 devices; maintain this bit set.
Unimplemented
Unimplemented
CONFIG5L
CONFIG5H
CONFIG6L
CONFIG6H
CONFIG7L
CONFIG7H
48 Kbytes
Boot Block
Read ‘0’s
Read ‘0’s
Block 0
Block 1
Block 2
SUMMARY OF CODE PROTECTION REGISTERS
MEMORY SIZE/DEVICE
CODE-PROTECTED PROGRAM MEMORY FOR PIC18F2585/2680/4585/4680
WRTD
Bit 7
CPD
—
—
—
—
(PIC18F2680/4680)
Unimplemented
Boot Block
64 Kbytes
EBTRB
WRTB
Read ‘0’s
Bit 6
CPB
Block 0
Block 1
Block 2
Block 3
—
—
—
PIC18F2585/2680/4585/4680
Preliminary
WRTC
Bit 5
—
—
—
—
—
000000h
0007FFh
000800h
003FFFh
004000h
007FFFh
008000h
00B7FFh
00C000h
00FFFFh
010000h
1FFFFFh
Address
Range
Each of the five blocks has three code protection bits
associated with them. They are:
• Code-Protect bit (CPn)
• Write-Protect bit (WRTn)
• External Block Table Read bit (EBTRn)
Figure 24-5 shows the program memory organization
for 48 and 64-Kbyte devices and the specific code
protection bit associated with each block. The actual
locations of the bits are summarized in Table 24-3.
Bit 4
—
—
—
—
—
—
EBTR3*
WRT3*
CP3*
Bit 3
(Unimplemented Memory Space)
—
—
—
Block Code Protection
CPB, WRTB, EBTRB
CP0, WRT0, EBTR0
CP1, WRT1, EBTR1
CP2, WRT2, EBTR2
CP3, WRT3, EBTR3
Controlled By:
EBTR2
WRT2
Bit 2
CP2
—
—
—
EBTR1
WRT1
Bit 1
CP1
DS39625C-page 357
—
—
—
EBTR0
WRT0
Bit 0
CP0
—
—
—