PIC16F636-I/P Microchip Technology Inc., PIC16F636-I/P Datasheet - Page 125

• Manufacturer Part Number: PIC16F636-I/P
• Description: 14 PIN, 3.5 KB FLASH, 128 RAM, 12 I/O
• Manufacturer: Microchip Technology Inc.

Specifications of PIC16F636-I/P

• Comparators: 2
• Cpu Speed: 5 MIPS
• Eeprom Memory: 256 Bytes
• Input Output: 12
• Memory Type: Flash
• Number Of Bits: 8
• Package Type: 14-pin PDIP
• Programmable Memory: 3.5K Bytes
• Ram Size: 128 Bytes
• Speed: 20 MHz
• Timers: 1-8-bit, 1-16-bit
• Voltage, Range: 2-5.5 V
• Lead Free Status / Rohs Status: RoHS Compliant part Electrostatic Device

FIGURE 12-8:
TABLE 12-6:
© 2005 Microchip Technology Inc.
0Bh, 8Bh INTCON
0Ch
8Ch
Legend:
Note 1:
Address
Instruction Flow
Note 1: INTF flag is sampled here (every Q1).
OSC1
CLKOUT
INT pin
INTF Flag
(INTCON<1>)
GIE bit
(INTCON<7>)
PC
Instruction
Fetched
Instruction
Executed
2: Asynchronous interrupt latency = 3-4 T
3: CLKOUT is available only in INTOSC and RC Oscillator modes.
4: For minimum width of INT pulse, refer to AC specifications in Section 15.0 “Electrical Specifications”.
5: INTF is enabled to be set any time during the Q4-Q1 cycles.
PIR1
PIE1
x = unknown, u = unchanged, — = unimplemented, read as ‘0’, q = value depends upon condition.
Shaded cells are not used by the interrupt module.
PIC16F636/639 only.
is the same whether Inst (PC) is a single cycle or a 2-cycle instruction.
(3)
Name
SUMMARY OF INTERRUPT REGISTERS
Q1
Inst (PC – 1)
Bit 7
EEIF
EEIE
GIE
INT PIN INTERRUPT TIMING
(1)
Inst (PC)
Q2
PC
Q3
(4)
LVDIE
LVDIF
PEIE
Bit 6
Q4
(5)
Q1
CRIF
CRIE
Bit 5
T0IE
Inst (PC + 1)
Q2
Inst (PC)
(1)
PC + 1
CY
Q3
C2IF
C2IE
. Synchronous latency = 3 T
INTE
Bit 4
PIC12F635/PIC16F636/639
Preliminary
Q4
(1)
(1)
Interrupt Latency
Q1
RAIE
C1IE
Bit 3
C1IF
Dummy Cycle
Q2
PC + 1
—
OSFIE
OSFIF
Q3
Bit 2
T0IF
(2)
Q4
CY
, where T
INTF
Bit 1
Q1
—
—
Dummy Cycle
Inst (0004h)
Q2
0004h
CY
TMR1IF 0000 00-0 0000 00-0
TMR1IE 0000 00-0 0000 00-0
RAIF
Bit 0
= instruction cycle time. Latency
Q3
Q4
0000 0000 0000 0000
POR, BOD,
Value on
WUR
Q1
DS41232B-page 123
Inst (0005h)
Inst (0004h)
Q2
0005h
Q3
Value on
all other
Resets
Q4