M50FW080N5P datasheet(2/56 Pages) STMICROELECTRONICS

Part #	M50FW080N5P

Description	8 Mbit 1Mb x8, Uniform Block 3V Supply Firmware Hub Flash Memory

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Manufacturer	STMICROELECTRONICS [STMicroelectronics]

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2 / 56 page

Contents

M50FW080

2/56

Contents

1

Summary description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7

2

Signal descriptions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12

2.1

Firmware Hub (FWH) signal descriptions . . . . . . . . . . . . . . . . . . . . . . . . 12

2.1.1

Input/Output communications (FWH0-FWH3) . . . . . . . . . . . . . . . . . . . . 12

2.1.2

Input communication frame (FWH4) . . . . . . . . . . . . . . . . . . . . . . . . . . . 12

2.1.3

Identification inputs (ID0-ID3) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12

2.1.4

General-purpose inputs (FGPI0-FGPI4) . . . . . . . . . . . . . . . . . . . . . . . . 12

2.1.5

Interface configuration (IC) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13

2.1.6

Interface Reset (RP) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13

2.1.7

CPU Reset (INIT) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13

2.1.8

Clock (CLK) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13

2.1.9

Top Block Lock (TBL) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13

2.1.10

Write Protect (WP) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14

2.1.11

Reserved for Future Use (RFU) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14

2.2

Address/Address Multiplexed (A/A Mux) signal descriptions . . . . . . . . . . 15

2.2.1

Address inputs (A0-A10) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15

2.2.2

Data inputs/outputs (DQ0-DQ7) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15

2.2.3

Output Enable (G) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15

2.2.4

Write Enable (W) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15

2.2.5

Row/Column Address Select (RC) . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15

2.2.6

Ready/Busy Output (RB) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15

2.3

Supply signal descriptions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16

2.3.1

VCC supply voltage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16

2.3.2

VPP optional supply voltage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16

2.3.3

VSS ground . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16

3

Bus operations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17

3.1

Firmware Hub (FWH) bus operations . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17

3.1.1

Bus Read . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17

3.1.2

Bus Write . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17

3.1.3

Bus Abort . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18

3.1.4

Standby . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18

3.1.5

Reset . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18

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