Microchip Technology IC MCU 8BIT PIC18F65K22-I/PT TQFP-64 MCP PIC18F65K22-I/PT Data Sheet
Product codes
PIC18F65K22-I/PT
PIC18F87K22 FAMILY
DS39960D-page 128
2009-2011 Microchip Technology Inc.
8.6.4
16-BIT MODE TIMING
The presentation of control signals on the External
Memory Bus is different for the various operating
modes. Typical signal timing diagrams are shown in
Memory Bus is different for the various operating
modes. Typical signal timing diagrams are shown in
and
.
FIGURE 8-4:
EXTERNAL MEMORY BUS TIMING FOR TBLRD
(EXTENDED MICROCONTROLLER MODE)
(EXTENDED MICROCONTROLLER MODE)
FIGURE 8-5:
EXTERNAL MEMORY BUS TIMING FOR SLEEP
(EXTENDED MICROCONTROLLER MODE)
(EXTENDED MICROCONTROLLER MODE)
Q2
Q1
Q3
Q4
Q2
Q1
Q3
Q4
Q2
Q1
Q3
Q4
A<19:16>
ALE
OE
AD<15:0>
CE
Opcode Fetch
Opcode Fetch
Opcode Fetch
TBLRD *
TBLRD
Cycle 1
ADDLW
55h
from 000100h
Q2
Q1
Q3
Q4
0Ch
CF33h
TBLRD
92h
from 199E67h
9256h
from 000104h
Memory
Cycle
Instruction
Execution
INST(PC – 2)
TBLRD
Cycle 2
MOVLW
55h
from 000102h
MOVLW
Q2
Q1
Q3
Q4
Q2
Q1
Q3
Q4
A<19:16>
ALE
OE
3AAAh
AD<15:0>
00h
00h
CE
Opcode Fetch
Opcode Fetch
SLEEP
SLEEP
from 007554h
Q1
Bus Inactive
0003h
3AABh
0E55h
Memory
Cycle
Instruction
Execution
INST(PC – 2)
Sleep Mode,
MOVLW
55h
from 007556h