PIC16C63A-20E/SS Microchip Technology, PIC16C63A-20E/SS Datasheet - Page 20

• Manufacturer Part Number: PIC16C63A-20E/SS
• Description: IC MCU OTP 4KX14 PWM 28SSOP
• Manufacturer: Microchip Technology
• Series: PIC® 16Cr

Specifications of PIC16C63A-20E/SS

• Core Processor: PIC
• Core Size: 8-Bit
• Speed: 20MHz
• Connectivity: I²C, SPI, UART/USART
• Peripherals: Brown-out Detect/Reset, POR, PWM, WDT
• Number Of I /o: 22
• Program Memory Size: 7KB (4K x 14)
• Program Memory Type: OTP
• Ram Size: 192 x 8
• Voltage - Supply (vcc/vdd): 4 V ~ 5.5 V
• Oscillator Type: External
• Operating Temperature: -40°C ~ 125°C
• Package / Case: 28-SSOP
• For Use With: 309-1025 - ADAPTER 28-SSOP TO 28-DIP
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -
• Data Converters: -

PIC16C63A/65B/73B/74B
4.2.2.2
The OPTION_REG register is a readable and writable
register, which contains various control bits to configure
the TMR0/WDT prescaler, the external INT Interrupt,
TMR0 and the weak pull-ups on PORTB.
REGISTER 4-2:
DS30605C-page 20
bit 7
bit 6
bit 5
bit 4
bit 3
bit 2-0
OPTION Register
OPTION_REG REGISTER (ADDRESS 81h)
RBPU: PORTB Pull-up Enable bit
1 = PORTB pull-ups are disabled
0 = PORTB pull-ups are enabled by individual port latch values
INTEDG: Interrupt Edge Select bit
1 = Interrupt on rising edge of RB0/INT pin
0 = Interrupt on falling edge of RB0/INT pin
T0CS: TMR0 Clock Source Select bit
1 = Transition on RA4/T0CKI pin
0 = Internal instruction cycle clock (CLKOUT)
T0SE: TMR0 Source Edge Select bit
1 = Increment on high-to-low transition on RA4/T0CKI pin
0 = Increment on low-to-high transition on RA4/T0CKI pin
PSA: Prescaler Assignment bit
1 = Prescaler is assigned to the WDT
0 = Prescaler is assigned to the Timer0 module
PS2:PS0: Prescaler Rate Select bits
Legend:
R = Readable bit
-n = Value at POR
bit 7
R/W-1
RBPU
Bit Value
000
001
010
011
100
101
110
111
INTEDG
R/W-1
TMR0 Rate
1 : 2
1 : 4
1 : 8
1 : 16
1 : 32
1 : 64
1 : 128
1 : 256
R/W-1
T0CS
WDT Rate
W = Writable bit
’1’ = Bit is set
1 : 1
1 : 2
1 : 4
1 : 8
1 : 16
1 : 32
1 : 64
1 : 128
R/W-1
T0SE
Note:
U = Unimplemented bit, read as ‘0’
’0’ = Bit is cleared
To achieve a 1:1 prescaler assignment for
the TMR0 register, assign the prescaler to
the watchdog timer.
R/W-1
PSA
R/W-1
PS2
2000 Microchip Technology Inc.
x = Bit is unknown
R/W-1
PS1
R/W-1
PS0
bit 0