MAX16068 datasheet(26/40 Pages) MAXIM

Part #	MAX16068

Description	6-Channel, Flash-Configurable System Manager with Nonvolatile Fault Registers

Download	40 Pages

Scroll/Zoom	100%

Manufacturer	MAXIM [Maxim Integrated Products]

Direct Link	https://www.maximintegrated.com/en.html

Logo

26 / 40 page

26 _____________________________________________________________________________________

6-Channel, Flash-Configurable System Manager

with Nonvolatile Fault Registers

Packet Error Checking (PEC)

The MAX16068 features a packet-error checking (PEC)

mode that is useful to improve the reliability of the com-

munication bus by detecting bit errors. By enabling PEC,

an extra CRC-8 error check byte is added in the data

string during each read and/or write sequence. Enable

PEC by writing a ‘1’ to r8Bh[7].

The CRC-8 byte is calculated using the polynomial:

C = X8 + X2 + X + 1

The PEC calculation includes all bytes in the transmis-

sion, including address, command and data. The PEC

calculation does not include ACK, NACK, START, STOP,

or REPEATED START.

Command Codes

The MAX16068 uses eight command codes for block

read, block write, and other commands. See Table 20

for a list of command codes.

To initiate a software reboot, send A7h using the send

byte format. A software-initiated reboot is function-

ally the same as a hardware-initiated power-on reset.

During boot-up, flash configuration data in the range

of 230h–28Ch is copied to r30h–r8Ch registers in the

default page.

Send command code A8h to trigger a fault store to flash.

Configure the Critical Fault Log Control register (6Dh) to

store ADC conversion results and/or fault flags.

While in the flash page, send command code A9h to

access the flash page (addresses from 200h–2FFh).

Once command code A9h has been sent, all addresses

are recognized as flash addresses only. Send command

code AAh to return to the default page (addresses from

000h–0FFh). Send command code ABh to access the

user flash-page (addresses from 300h–3FFh), and send

command code ACh to return to the flash page.

Restrictions When Writing to Flash

Flash must be written to 8 bytes at a time. The initial

address must be aligned to 8-byte boundaries—the 3

LSBs of the initial address must be ‘000’. Write the 8

bytes using a single block write command or using eight

successive Write Byte commands. A write operation

requires 122ms for each 8-byte block. After program-

ming a block, check r20h[1] (see Table 25) to make sure

the write operation is complete before attempting to write

the next block.

Table 20. Command Codes

Table 19. SMBus Settings Register

COMMAND CODE

ACTION

A5h

Block write

A6h

Block read

A7h

Reboot flash in register file

A8h

Trigger emergency save to flash

A9h

Flash page access ON

AAh

Flash page access OFF

ABh

User flash access ON (must be in flash page already)

ACh

User flash access OFF (return to flash page)

REGISTER

ADDRESS

FLASH

ADDRESS

BIT RANGE

DESCRIPTION

8Bh

28Bh

[6:0]

SMBus Slave Address Register. Set to 00h to use A0 pin address

setting.

[7]

1 = Enable PEC (Packet Error Check).

Similar Part No. - MAX16068

Manufacturer	Part #	Datasheet	Description
Maxim Integrated Produc...	MAX1606	302Kb / 10P	28V Internal Switch LCD Bias Supply with True Shutdown 19-1744; Rev 0; 7/00
	MAX1606	664Kb / 10P	28V Internal Switch LCD Bias Supply with True Shutdown 2004
	MAX16060	218Kb / 18P	1% Accurate, Quad-/Hex-/Octal-Voltage uP Supervisors 19-4099; Rev 0; 4/08
	MAX16060_TE++	218Kb / 18P	1% Accurate, Quad-/Hex-/Octal-Voltage uP Supervisors 19-4099; Rev 0; 4/08
	MAX16061_TP++	218Kb / 18P	1% Accurate, Quad-/Hex-/Octal-Voltage uP Supervisors 19-4099; Rev 0; 4/08

More results

Similar Description - MAX16068

Manufacturer	Part #	Datasheet	Description
Maxim Integrated Produc...	MAX16067	2Mb / 47P	6-Channel, Flash-Configurable System Manager with Nonvolatile Fault Registers Rev 0; 10/09
	MAX16067	2Mb / 48P	6-Channel, Flash-Configurable System Manager with Nonvolatile Fault Registers Rev 1; 2/10
	MAX16070	2Mb / 52P	12-Channel/8-Channel, Flash-Configurable System Monitors with Nonvolatile Fault Registers Rev 3; 8/11
	MAX16065	2Mb / 61P	12-Channel/8-Channel, Flash-Configurable System Managers with Nonvolatile Fault Registers Rev 0; 7/09
	MAX16046	481Kb / 70P	12-Channel/8-Channel EEPROM-Programmable System Managers with Nonvolatile Fault Registers Rev 4; 3/09
	MAX16047	422Kb / 61P	12-Channel/8-Channel EEPROM-Programmable System Managers with Nonvolatile Fault Registers Rev 3; 3/09
	MAX16047	516Kb / 62P	12-Channel/8-Channel EEPROM-Programmable System Managers with Nonvolatile Fault Registers Rev 0; 11/07
	MAX16046	545Kb / 68P	12-Channel/8-Channel EEPROM-Programmable System Managers with Nonvolatile Fault Registers Rev 0; 10/07
	MAX16047A	1,015Kb / 61P	12-Channel/8-Channel EEPROM-Programmable System Managers with Nonvolatile Fault Registers Rev 0; 4/10
	MAX16046A	1Mb / 71P	12-Channel/8-Channel EEPROM-Programmable System Managers with Nonvolatile Fault Registers Rev 0; 4/10

More results

MAX16068 Datasheet(PDF) 26 Page - Maxim Integrated Products

MAX16068 Datasheet(HTML) 26 Page - Maxim Integrated Products

Similar Part No. - MAX16068

Similar Description - MAX16068

Html Pages

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40

Datasheet Download

Link URL