PIC18F4550-I/P Microchip Technology Inc., PIC18F4550-I/P Datasheet - Page 294

• Manufacturer Part Number: PIC18F4550-I/P
• Description: 40 PIN, 32 KB FLASH, 2048 RAM, FS-USB 2.0
• Manufacturer: Microchip Technology Inc.

Specifications of PIC18F4550-I/P

• A/d Inputs: 13-Channel, 10-Bit
• Comparators: 2
• Cpu Speed: 12 MIPS
• Eeprom Memory: 256 Bytes
• Input Output: 34
• Interface: I2C/SPI/UART/USART/USB
• Memory Type: Flash
• Number Of Bits: 8
• Package Type: 40-pin PDIP
• Programmable Memory: 32K Bytes
• Ram Size: 2K Bytes
• Speed: 48 MHz
• Timers: 1-8-bit, 3-16-bit
• Voltage, Range: 2-5.5 V
• Lead Free Status / Rohs Status: RoHS Compliant part Electrostatic Device

PIC18F2455/2550/4455/4550
REGISTER 25-6:
DS39632C-page 292
bit 7
Legend:
R = Readable bit
-n = Value when device is unprogrammed
bit 7
bit 6
bit 5
bit 4-3
bit 2
bit 1
bit 0
Note 1:
DEBUG
R/P-1
Available only on PIC18F4455/4550 devices in 44-pin TQFP packages. Always leave this bit clear in all
other devices.
DEBUG: 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: 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)
ICPRT: Dedicated In-Circuit Debug/Programming Port (ICPORT) Enable bit
1 = ICPORT enabled
0 = ICPORT disabled
Unimplemented: Read as ‘0’
LVP: Single-Supply ICSP™ Enable bit
1 = Single-Supply ICSP enabled
0 = Single-Supply ICSP disabled
Unimplemented: Read as ‘0’
STVREN: Stack Full/Underflow Reset Enable bit
1 = Stack full/underflow will cause Reset
0 = Stack full/underflow will not cause Reset
XINST
R/P-0
CONFIG4L: CONFIGURATION REGISTER 4 LOW (BYTE ADDRESS 300006h)
P = Programmable bit
ICPRT
R/P-0
(1)
U-0
Preliminary
—
u = Unchanged from programmed state
U = Unimplemented bit, read as ‘0’
U-0
—
R/P-1
LVP
© 2006 Microchip Technology Inc.
(1)
U-0
—
STVREN
R/P-1
bit 0