PIC17C4X Datasheet, PDF (44/240 Pages) Microchip Technology – High-Performance 8-Bit CMOS EPROM/ROM Microcontroller

PIC17C4X
FIGURE 7-3: TLRD INSTRUCTION
OPERATION
TABLE POINTER
TBLPTRH
TBLPTRL
TABLE LATCH (16-bit)
TABLATH TABLATL
TLRD 1,f
TLRD 0,f
DATA
MEMORY
PROGRAM MEMORY
f
1
FIGURE 7-4: TABLRD INSTRUCTION
OPERATION
TABLE POINTER
TBLPTRH
TBLPTRL
TABLE LATCH (16-bit)
TABLATH TABLATL
3
TABLRD 1,i,f
DATA
MEMORY
3
TABLRD 0,i,f
PROGRAM MEMORY
f
1
Prog-Mem
(TBLPTR)
2
Note 1: 8-bit value, from TABLAT (16-bit) high or
low byte, loaded into register 'f'.
Note 1: 8-bit value, from TABLAT (16-bit) high or
low byte, loaded into register 'f'.
2: 16-bit value at Program Memory (TBLPTR)
loaded into TABLAT register.
3: If “i” = 1, then TBLPTR = TBLPTR + 1,
If “i” = 0, then TBLPTR is unchanged.
DS30412C-page 44
© 1996 Microchip Technology Inc.