PIC18F4220-I/P Microchip Technology Inc., PIC18F4220-I/P Datasheet - Page 244

• Manufacturer Part Number: PIC18F4220-I/P
• Description: Microcontroller; 4 KB Flash; 512 RAM; 256 EEPROM; 36 I/O; 40-Pin-PDIP
• Manufacturer: Microchip Technology Inc.

Specifications of PIC18F4220-I/P

• A/d Inputs: 13-Channel, 10-Bit
• Comparators: 2
• Cpu Speed: 10 MIPS
• Eeprom Memory: 256 Bytes
• Input Output: 36
• Interface: I2C/SPI/UART/USART
• Memory Type: Flash
• Number Of Bits: 8
• Package Type: 40-pin PDIP
• Programmable Memory: 4K Bytes
• Ram Size: 512 Bytes
• Speed: 40 MHz
• Timers: 1-8-bit, 3-16-bit
• Voltage, Range: 2-5.5 V
• Lead Free Status / Rohs Status: RoHS Compliant part Electrostatic Device

PIC18F2220/2320/4220/4320
REGISTER 23-8:
REGISTER 23-9:
DS39599C-page 242
bit 7-4
bit 3
bit 2
bit 1
bit 0
bit 7
bit 6
bit 5
bit 4-0
Unimplemented: Read as ‘0’
WRT3: Write Protection bit
1 = Block 3 (001800-001FFFh) not write-protected
0 = Block 3 (001800-001FFFh) write-protected
WRT2: Write Protection bit
1 = Block 2 (001000-0017FFh) not write-protected
0 = Block 2 (001000-0017FFh) write-protected
WRT1: Write Protection bit
1 = Block 1 (000800-000FFFh) not write-protected
0 = Block 1 (000800-000FFFh) write-protected
WRT0: Write Protection bit
1 = Block 0 (000200-0007FFh) not write-protected
0 = Block 0 (000200-0007FFh) write-protected
CONFIG6L: CONFIGURATION REGISTER 6 LOW (BYTE ADDRESS 30000Ah)
CONFIG6H: CONFIGURATION REGISTER 6 HIGH (BYTE ADDRESS 30000Bh)
bit 7
Legend:
R = Readable bit
- n = Value when device is unprogrammed
WRTD: Data EEPROM Write Protection bit
1 = Data EEPROM not write-protected
0 = Data EEPROM write-protected
WRTB: Boot Block Write Protection bit
1 = Boot block (000000-0001FFh) not write-protected
0 = Boot block (000000-0001FFh) write-protected
WRTC: Configuration Register Write Protection bit
1 = Configuration registers (300000-3000FFh) not write-protected
0 = Configuration registers (300000-3000FFh) write-protected
Unimplemented: Read as ‘0’
Legend:
R = Readable bit
- n = Value when device is unprogrammed
bit 7
Note 1: Unimplemented in PIC18FX220 devices; maintain this bit set.
WRTD
Note:
R/P-1
U-0
—
This bit is read-only in normal execution mode; it can be written only in Program
mode.
WRTB
R/P-1
U-0
—
P = Programmable bit
P = Programmable bit
WRTC
(1)
(1)
R-1
U-0
—
U-0
—
U-0
—
WRT3
U = Unimplemented bit, read as ‘0’
u = Unchanged from programmed state
U = Unimplemented bit, read as ‘0’
u = Unchanged from programmed state
R/P-1
U-0
—
(1)
WRT2
R/P-1
U-0
—
 2003 Microchip Technology Inc.
(1)
WRT1
R/P-1
U-0
—
WRT0
R/P-1
U-0
—
bit 0
bit 0