DM163006 datasheet(69/320 Pages) MICROCHIP

69 / 320 page

 2001 Microchip Technology Inc.

Advance Information

DS39541A-page 69

PIC18C601/801

5.3.4

16-BIT MODE CONTROL SIGNALS

Table 5-3 describes the 16-bit mode control signals for

the PIC18C601/801.

TABLE 5-3:

PIC18C601/801 16-BIT MODE CONTROL SIGNALS

5.3.5

16-BIT MODE TIMING

Figure 5-8 describes the 16-bit mode timing for the

PIC18C601/801.

FIGURE 5-8:

16-BIT MODE TIMING

Name

18C601 16-bit

Mode

18C801 16-bit

Mode

Function

RG0/ALE

ALE

Address Latch Enable (ALE) control pin

RG1/OE

Output Enable (OE) control pin

RG2/WRL

WRL

Write Low (WRL) control pin

RG3/WRH

WRH

Write High (WRH) control pin

RG4/BA0

BA0

Byte address bit 0

RF3/CSIO

CSIO

Chip Select I/O (See Section 5.4)

RF4/CS2

N/A

CS2

Chip Select 2 (See Section 5.4)

RF5/CS1

CS1

Chip Select 1 (See Section 5.4)

RF6/UB

Upper Byte Enable (UB) control pin

RF7/LB

Lower Byte Enable (LB) control pin

I/O

I/O as BYTE/WORD control pin for JEDEC FLASH

A16, AD<15:8>

ALE

AD<7:0>

BA0

Opcode Fetch

MOVLW 55h

from 007556h

03Ah

0E55h

3AABh

WRH

WRL

‘1’

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