PIC18F4550-I/P Microchip Technology Inc., PIC18F4550-I/P Datasheet - Page 53

• 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

TABLE 4-4:
© 2006 Microchip Technology Inc.
TOSU
TOSH
TOSL
STKPTR
PCLATU
PCLATH
PCL
TBLPTRU
TBLPTRH
TBLPTRL
TABLAT
PRODH
PRODL
INTCON
INTCON2
INTCON3
INDF0
POSTINC0
POSTDEC0
PREINC0
PLUSW0
FSR0H
FSR0L
WREG
INDF1
POSTINC1
POSTDEC1
PREINC1
PLUSW1
FSR1H
FSR1L
BSR
Legend: u = unchanged, x = unknown, - = unimplemented bit, read as ‘0’, q = value depends on condition.
Note 1:
Register
2:
3:
4:
5:
Shaded cells indicate conditions do not apply for the designated device.
When the wake-up is due to an interrupt and the GIEL or GIEH bit is set, the TOSU, TOSH and TOSL are
updated with the current value of the PC. The STKPTR is modified to point to the next location in the
hardware stack.
One or more bits in the INTCONx or PIRx registers will be affected (to cause wake-up).
When the wake-up is due to an interrupt and the GIEL or GIEH bit is set, the PC is loaded with the interrupt
vector (0008h or 0018h).
See Table 4-3 for Reset value for specific condition.
PORTA<6>, LATA<6> and TRISA<6> are enabled depending on the oscillator mode selected. When not
enabled as PORTA pins, they are disabled and read ‘0’.
2455 2550 4455 4550
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2455 2550 4455 4550
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2455 2550 4455 4550
2455 2550 4455 4550
2455 2550 4455 4550
2455 2550 4455 4550
2455 2550 4455 4550
2455 2550 4455 4550
2455 2550 4455 4550
2455 2550 4455 4550
2455 2550 4455 4550
2455 2550 4455 4550
2455 2550 4455 4550
2455 2550 4455 4550
2455 2550 4455 4550
2455 2550 4455 4550
2455 2550 4455 4550
2455 2550 4455 4550
2455 2550 4455 4550
2455 2550 4455 4550
2455 2550 4455 4550
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INITIALIZATION CONDITIONS FOR ALL REGISTERS
Applicable Devices
PIC18F2455/2550/4455/4550
Brown-out Reset
Power-on Reset,
---0 0000
0000 0000
0000 0000
00-0 0000
---0 0000
0000 0000
0000 0000
--00 0000
0000 0000
0000 0000
0000 0000
xxxx xxxx
xxxx xxxx
0000 000x
1111 -1-1
11-0 0-00
---- 0000
xxxx xxxx
xxxx xxxx
---- 0000
xxxx xxxx
---- 0000
Preliminary
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
RESET Instruction,
MCLR Resets,
Stack Resets
WDT Reset,
---0 0000
0000 0000
0000 0000
uu-0 0000
---0 0000
0000 0000
0000 0000
--00 0000
0000 0000
0000 0000
0000 0000
uuuu uuuu
uuuu uuuu
0000 000u
1111 -1-1
11-0 0-00
---- 0000
uuuu uuuu
uuuu uuuu
---- 0000
uuuu uuuu
---- 0000
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
Wake-up via WDT
or Interrupt
DS39632C-page 51
---0 uuuu
uuuu uuuu
uuuu uuuu
uu-u uuuu
---u uuuu
uuuu uuuu
--uu uuuu
uuuu uuuu
uuuu uuuu
uuuu uuuu
uuuu uuuu
uuuu uuuu
uuuu uuuu
uuuu -u-u
uu-u u-uu
---- uuuu
uuuu uuuu
uuuu uuuu
---- uuuu
uuuu uuuu
---- uuuu
PC + 2
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
(3)
(1)
(1)
(1)
(1)
(2)
(2)
(2)