DS2751E Просмотр технического описания (PDF) - Maxim Integrated

Номер в каталоге

Компоненты Описание

производитель

DS2751E

Multichemistry Battery Fuel Gauge

Maxim Integrated 

Table 3. MEMORY MAP

ADDRESS (HEX)

00

01

02 to 06

07

08

09 to 0B

0C

0D

DESCRIPTION

Reserved

Status Register

Reserved

EEPROM Register

Special Feature Register

Reserved

Voltage Register MSB

Voltage Register LSB

0E

Current Register MSB

0F

Current Register LSB

10

11

12 to 17

18

19

1A to 1F

20 to 2F

30 to 3F

40 to 7F

80 to 8F

90 to FF

Accumulated Current Register MSB

Accumulated Current Register LSB

Reserved

Temperature Register MSB

Temperature Register LSB

Reserved

EEPROM, block 0

EEPROM, block 1

Reserved

SRAM

Reserved

*Each EEPROM block is read/write until locked by the LOCK command, after which it is read-only.

DS2751

READ/WRITE

R

R/W

R/W

R

R

R

R

R/W

R/W

R

R

R/W*

R/W*

R/W

STATUS REGISTER

The default values for the Status Register bits are stored in lockable EEPROM in the corresponding bits

of address 31h. A Recall Data command for EEPROM block 1 recalls the default values into the Status

Register bits. The format of the Status Register is shown in Figure 8. The function of each bit is described

in detail in the following paragraphs.

Figure 8. STATUS REGISTER FORMAT

Address 01

bit 7 bit 6 bit 5 bit 4 bit 3 bit 2 bit 1 bit 0

X

X PMOD RNAOP UVEN X

X

X

PMOD—Sleep Mode Enable. A value of 1 in this bit enables the DS2751 to enter sleep mode when the

DQ line goes low for greater than tSLEEP. A value of 0 disables the DS2751 from entering the sleep mode.

This bit is read-only. The desired default value should be set in bit 5 of address 31h. The factory default

is 0.

RNAOP—Read Net Address Opcode. A value of 0 in this bit sets the opcode for the Read Net Address

command to 33h, while a 1 sets the opcode to 39h. This bit is read-only. The desired default value should

be set in bit 4 of address 31h. The factory default is 0.

11 of 19

Share Link: