M50FLW080A datasheet(37/64 Pages) STMICROELECTRONICS

Part #	M50FLW080A

Description	8 Mbit (13 x 64KByte Blocks 3 x 16 x 4KByte Sectors), 3V Supply Firmware Hub / Low Pin Count Flash Memory

PDF	64 Pages

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Manufacturer	STMICROELECTRONICS [STMicroelectronics]

Direct Link	http://www.st.com

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37 / 64 page

M50FLW080A, M50FLW080B

Firmware Hub/low-pin-count (FWH/LPC) interface Configuration

37/64

6.2

Firmware Hub/low-pin-count (FWH/LPC) General-Purpose

Input Register

The FWH/LPC General Purpose Input Register holds the state of the General Purpose

Input pins, GPI0-GPI4. When this register is read, the state of these pins is returned. This

The signals on the FWH/LPC Interface General Purpose Input pins should remain constant

throughout the whole Bus Read cycle.

6.3

Manufacturer Code Register

Reading the Manufacturer Code Register returns the value 20h, which is the Manufacturer

Code for STMicroelectronics. This register is read-only. Writing to it has no effect.

Table 17.

General-Purpose Input Register definition

Bit

Bit Name

Value

Function(1)

Applies to the General Purpose Inputs Register (GPI-REG).

7-5

Reserved

4GPI4

‘1’

Input Pin GPI4 is at VIH

‘0’

Input Pin GPI4 is at VIL

3GPI3

‘1’

Input Pin GPI3 is at VIH

‘0’

Input Pin GPI3 is at VIL

2GPI2

‘1’

Input Pin GPI2 is at VIH

‘0’

Input Pin GPI2 is at VIL

1GPI1

‘1’

Input Pin GPI1 is at VIH

‘0’

Input Pin GPI1 is at VIL

0GPI0

‘1’

Input Pin GPI0 is at VIH

‘0’

Input Pin GPI0 is at VIL

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