PIC18F4550-I/P Microchip Technology Inc., PIC18F4550-I/P Datasheet - Page 57

• 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.
UEP15
UEP14
UEP13
UEP12
UEP11
UEP10
UEP9
UEP8
UEP7
UEP6
UEP5
UEP4
UEP3
UEP2
UEP1
UEP0
UCFG
UADDR
UCON
USTAT
UEIE
UEIR
UIE
UIR
UFRMH
UFRML
SPPCON
SPPEPS
SPPCFG
SPPDATA
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
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
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
INITIALIZATION CONDITIONS FOR ALL REGISTERS (CONTINUED)
Applicable Devices
PIC18F2455/2550/4455/4550
Brown-out Reset
Power-on Reset,
---0 0000
---0 0000
---0 0000
---0 0000
---0 0000
---0 0000
---0 0000
---0 0000
---0 0000
---0 0000
---0 0000
---0 0000
---0 0000
---0 0000
---0 0000
---0 0000
00-0 0000
-000 0000
-0x0 000-
-xxx xxx-
0--0 0000
0--0 0000
-000 0000
-000 0000
---- -xxx
xxxx xxxx
---- --00
00-0 0000
0000 0000
0000 0000
Preliminary
RESET Instruction,
MCLR Resets,
Stack Resets
WDT Reset,
---0 0000
---0 0000
---0 0000
---0 0000
---0 0000
---0 0000
---0 0000
---0 0000
---0 0000
---0 0000
---0 0000
---0 0000
---0 0000
---0 0000
---0 0000
---0 0000
00-0 0000
-000 0000
-0x0 000-
-xxx xxx-
0--0 0000
0--0 0000
-000 0000
-000 0000
---- -xxx
xxxx xxxx
---- --00
00-0 0000
0000 0000
0000 0000
Wake-up via WDT
or Interrupt
---u uuuu
---u uuuu
---u uuuu
---u uuuu
---u uuuu
---u uuuu
---u uuuu
---u uuuu
---u uuuu
---u uuuu
---u uuuu
---u uuuu
---u uuuu
---u uuuu
---u uuuu
---u uuuu
uu-u uuuu
-uuu uuuu
-uuu uuu-
-uuu uuu-
u--u uuuu
u--u uuuu
-uuu uuuu
-uuu uuuu
---- -uuu
uuuu uuuu
---- --uu
uu-u uuuu
uuuu uuuu
uuuu uuuu
DS39632C-page 55