PIC17C752 MICROCHIP [Microchip Technology], PIC17C752 Datasheet - Page 275

• Manufacturer Part Number: PIC17C752
• Description: High-Performance 8-Bit CMOS EPROM Microcontrollers
• Manufacturer: MICROCHIP [Microchip Technology]

FIGURE F-3:
1997 Microchip Technology Inc.
bit7
bit 7:
bit 6:
bit 5:
bit 4-1: T0PS3:T0PS0: Timer0 Prescale Selection bits
bit 0:
INTEDG
R/W - 0
INTEDG: RA0/INT Pin Interrupt Edge Select bit
This bit selects the edge upon which the interrupt is detected.
1 = Rising edge of RA0/INT pin generates interrupt
0 = Falling edge of RA0/INT pin generates interrupt
T0SE: Timer0 Clock Input Edge Select bit
This bit selects the edge upon which TMR0 will increment.
When T0CS = 0 (External Clock)
1 = Rising edge of RA1/T0CKI pin increments TMR0 and/or generates a T0CKIF interrupt
0 = Falling edge of RA1/T0CKI pin increments TMR0 and/or generates a T0CKIF interrupt
When T0CS = 1 (Internal Clock)
Don’t care
T0CS: Timer0 Clock Source Select bit
This bit selects the clock source for Timer0.
1 = Internal instruction clock cycle (T
0 = External clock input on the T0CKI pin
These bits select the prescale value for Timer0.
Unimplemented: Read as '0'
T0PS3:T0PS0
R/W - 0
T0SE
0000
0001
0010
0011
0100
0101
0110
0111
1xxx
T0STA REGISTER
R/W - 0
T0CS
Prescale Value
R/W - 0
1:1
1:2
1:4
1:8
1:16
1:32
1:64
1:128
1:256
PS3
(ADDRESS: 05h, UNBANKED)
R/W - 0
T0PS2
CY
Preliminary
)
R/W - 0
T0PS1
R/W - 0
T0PS0
U - 0
—
bit0
R = Readable bit
W = Writable bit
U = Unimplemented,
-n = Value at POR reset
reads as ‘0’
DS30264A-page 275