BQ32002 Datasheet, PDF (17/29 Pages) Texas Instruments – BQ32002 Real-Time Clock (RTC)

www.ti.com
BQ32002
SLUSA96B – AUGUST 2010 – REVISED APRIL 2016
Address
Name
Initial Value
Description
D7
RSVD
r/w
1
1
RSVD
Table 13. CFG2 Register
0x09
CFG2
10101010b
Configuration 2
D6
D5
D4
D3
D2
D1
RSVD
RSVD
RSVD
r/w
r/w
r/w
0
1
0
1
0
1
0
UC
UC
1
0
1
Reserved. The RSVD bits should always be written as 0.
D0
BIT(S)
Name
Read/Write
0
Initial
0
Cycle
7.6.3 Special Function Registers
Address
Name
Initial Value
Description
D7
0
0
SF KEY B1
Table 14. SF KEY 1 Register
0x20
SF KEY 1
00000000b
Special function key 1
D6
D5
D4
D3
D2
D1
D0
BIT(S)
SF KEY B1
Name
r/w
Read/Write
0
0
0
0
0
0
0
Initial
0
0
0
0
0
0
0
Cycle
Special function access key byte 1. Reads as 0x00, and key is 0x5E.
The SF KEY 1 and SF KEY 2 registers are used to enable access to the main special function register (SFR). Access to
SFR is granted only after the special function keys are written sequentially to SF KEY 1 and SF KEY 2. Each write to the
SFR must be preceded by writing the SF keys to the SF key registers, in order, SF KEY 1 then SF KEY 2.
Copyright © 2010–2016, Texas Instruments Incorporated
Product Folder Links: BQ32002
Submit Documentation Feedback
17