PIC17C42-16I/JW View Datasheet(PDF) - Microchip Technology

Part Name

Description

Manufacturer

PIC17C42-16I/JW

High-Performance 8-Bit CMOS EPROM/ROM Microcontroller

Microchip Technology 

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.

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