MX9691A データシートの表示（PDF） - Macronix International

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MX9691A

SINGLE CHIP SOLID STATE DISK CONTROLLER

Macronix International 

Symbol

No.

FA17/EROM 21

FA[16:15]/

1-2

ATADET[1:0]

RDFLASH1# 54

RDFLASH0# 42

WRFLASH1# 19

WRFLASH0# 18

MX9691A

Type

I/O

Description

This signal is used as flash memory chip high address line 17. This

signal is used to select whether the firmware store in flash memory

array or in separate external ROM at power-on reset. If this pin go high,

then the firmware will be executed in flash memory array, and if this pin

remains low, then the firmware will be executed in separate external

ROM.

Store firmware in external ROM or Flash memory array:

EROM = 0 —> Store in External ROM

EROM = 1 —> Store in flash memory array

This pin includes an internal pull-up resistor.

I/O This signal is used as flash memory chip high address line 16-15.These

signals are used to select configuration in ATA extension mode at power-

on reset. ATADET1 is connected to DSP's IPT1. ATADET0 is connected

to DSP's IPT0. VDD is connected to IPT2.

Master/Slave selection in ATA mode :

ATADET1 ATADET0 mode selected

1 1 one drive

0 0 master of two drives

1 0 slave of two drives

This power-on configuration can be accessed from PCMCIA/ATA port

601Ch bit3-2. These pins include internal pull-up resistors.

O

Flash memory ouptut enable 1 for bank1: This signal will be asserted

by flash memory read operation when flash memory read address latch,

port 601Dh bit 8 = 1(i.e. FA23=1).

Note: Flash memory access window is mapped to 32KW data and

code space 8000h~ffffh.

O

Flash memory ouptut enable 0 for bank0: This signal will be asserted

by flash memory read operation when flash memory read address latch,

port 601Dh bit 8 = 0(i.e. FA23=0).

O

Flash memory write enable 1 for bank1: This signal will be asserted by

flash memory write operation when flash memory write address latch,

port 601Fh bit 8 = 1(i.e. FA23=1).

O

Flash memory write enable 0 for bank0: This signal will be asserted by

flash memory write operation when flash memory write address latch,

port 601Fh bit 8 = 0(i.e. FA23=0).

P/N:PM0539

REV. 1.0, OCT. 02, 1998

7

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