PIC16F88-I/SO Microchip Technology Inc., PIC16F88-I/SO Datasheet - Page 144

• Manufacturer Part Number: PIC16F88-I/SO
• Description: 18 PIN, 7 KB FLASH, 368 RAM, 16 I/O
• Manufacturer: Microchip Technology Inc.

Specifications of PIC16F88-I/SO

• A/d Inputs: 7-Channel, 10-Bit
• Comparators: 2
• Cpu Speed: 5 MIPS
• Eeprom Memory: 256 Bytes
• Input Output: 16
• Interface: I2C/SPI/USART
• Memory Type: Flash
• Number Of Bits: 8
• Package Type: 18-pin SOIC
• Programmable Memory: 7K Bytes
• Ram Size: 368 Bytes
• Speed: 20 MHz
• Timers: 2-8-bit, 1-16-bit
• Voltage, Range: 2-5.5 V
• Lead Free Status / Rohs Status: RoHS Compliant part Electrostatic Device

PIC16F87/88
REGISTER 15-3:
TABLE 15-6:
DS30487C-page 142
81h,181h OPTION_REG
2007h
105h
Legend: Shaded cells are not used by the Watchdog Timer.
Note 1:
Address
Configuration bits
WDTCON
See Register 15-1 for operation of these bits.
bit 7-5
bit 4-1
bit 0
Name
SUMMARY OF WATCHDOG TIMER REGISTERS
bit 7
Unimplemented: Read as ‘0’
WDTPS<3:0>: Watchdog Timer Period Select bits
0000 = 1:32
0001 = 1:64
0010 = 1:128
0011 = 1:256
0100 = 1:512
0101 = 1:1024
0110 = 1:2048
0111 = 1:4096
1000 = 1:8192
1001 = 1:16394
1010 = 1:32768
1011 = 1:65536
SWDTEN: Software Enable/Disable for Watchdog Timer bit
1 = WDT is turned on
0 = WDT is turned off
Legend:
R = Readable bit
-n = Value at POR
Value
WDTCON: WATCHDOG CONTROL REGISTER (ADDRESS 105h)
Bit
Note 1: If WDTEN configuration bit = 1, then WDT is always enabled, irrespective of this
U-0
—
Prescale
RBPU
Rate
Bit 7
LVP
control bit. If WDTEN configuration bit = 0, then it is possible to turn WDT on/off with
this control bit.
—
U-0
—
INTEDG
BOREN
Bit 6
—
U-0
—
W = Writable bit
‘1’ = Bit is set
MCLRE
T0CS
Bit 5
—
WDTPS3
R/W-0
WDTPS3 WDTPS2 WSTPS1 WDTPS0 SWDTEN
FOSC2
T0SE
Bit 4
WDTPS2 WDTPS1 WDTPS0 SWDTEN
R/W-1
U = Unimplemented bit, read as ‘0’
‘0’ = Bit is cleared
PWRTEN
Bit 3
PSA
(1)
R/W-0
WDTEN
 2005 Microchip Technology Inc.
Bit 2
PS2
R/W-0
x = Bit is unknown
FOSC1
Bit 1
PS1
R/W-0
FOSC0
Bit 0
PS0
bit 0
(1)