STBC21 datasheet(30/54 Pages) STMICROELECTRONICS

30 / 54 page

STBC21

30/54

Doc ID 023256 Rev 1

Appendix A

description

The STBC21 has two different access modes to the internal registers: user mode and

customer mode.

User mode

At power-on the STBC21 enters user mode. Only Reg11H and Reg12H are fully accessible

in read-mode while Reg13H is accessible in limited write-mode (only 'customer_mode' and

'CE' bits can be written) and fully accessible in read-mode.

Customer mode

The STBC21 enters customer mode when bit7, in Reg13H, is set to '1'. In this mode the

configuration of the internal system registers is:

●

Reg00H to Reg07H are accessible in read/write mode;

●

Reg10H has limited write access (NVM interface commands);

●

Reg11H and Reg12H are accessible only in read mode;

●

Reg13H has limited write access (commands bits only);

●

Reg14H is accessible only in read mode.

Table 10.

Configuration registers map

REG/BIT

00H

AMR

TIMER-3

TIMER-2

01H

Reserved

ISET3

ISET1

02H

CV-4

CV-3

CV-2

CV-1

03H

Th-h

04H

Reserved

Hys

05H

LF45

LD7

LD45

LD3

LD2

06H

Reserved

LD6

LF267

DUTY mode

07H

Reserved

CV4-Iset2

CV3-Iset2

CV2-Iset2

CV1-Iset2

Table 11.

Control registers map

REG/

BIT

10H

NVM Busy

NVM

check

NVM command

11H

VCC_uvlo

VCC_ovp IBAT_ocp Batt_ovp

Batt_uvlo

Batt_hot

Batt_detect_KO

Batt_no_

conn

12H

ASD_Mode

Thermal

protection

Batt temp

alarm

Batt temp

alarm

Batt_temp_soc

Timer2

expired

Timer1 expired

0V_Chrg

_alarm

13H

Customer_ en

Reserved Reserved SW_chrg_alarm

SW_chrg_status

14H

Batt_temp_range

Reserved

Iset2_half

Vfloat_05

Vfloat_10

Vfloat_20

STBC21 数据表(PDF) 30 Page - STMicroelectronics

STBC21 数据表(HTML) 30 Page - STMicroelectronics

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 41 42 43 44 45 46 47 48 49 50 51 52 53 54

数据表下载

链接网址

STBC21 数据表(PDF) 30 Page - STMicroelectronics

STBC21 数据表(HTML) 30 Page - STMicroelectronics

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 41 42 43 44 45 46 47 48 49 50 51 52 53 54

数据表 下载

链接网址

数据表下载