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SLG46824 Datasheet(PDF) 97 Page - Dialog Semiconductor

Part No. SLG46824
Description  GreenPAK Programmable Mixed Signal Matrix with In System
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Maker  DIALOG [Dialog Semiconductor]
Homepage  http://www.dialog-semiconductor.com/
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SLG46824 Datasheet(HTML) 97 Page - Dialog Semiconductor

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Datasheet
31-Jan-2018
CFR0011-120-01
Revision 2.3
97 of 152
© 2018 Dialog Semiconductor
SLG46824
GreenPAK Programmable Mixed Signal Matrix with In System
Programmability
PRELIMINARY
16
NVM with a Software Write Protection 2-Kbit
The SLG46824 provides 2,048 bits of Serial Electrically Erasable Memory internally organized as 16 pages of 16 bytes. The
protection settings of the device can be made permanent if desired.
16.1 SERIAL NVM WRITE OPERATIONS
Write access to the NVM is possible by setting A3 A2 A1 A0 to “0000”, which allows serial write data for a single page only. Upon
receipt of the proper Device Address and Word Address bytes, the SLG46824 will send an ACK. The device will then be ready
to receive page data, which is 16 sequential writes of 8-bit data words. The SLG46824 will respond with an ACK after each data
word is received. The addressing device, such as a bus Master, must then terminate the write operation with a Stop condition
after all page data is written. At that time the GPAK will enter an internally self-timed write cycle, which will be completed within
tWR (20 ms). While the data is being written into the NVM Memory Array, all inputs, outputs, internal logic and I2C access to the
Register data will be operational/valid. Please refer to Figure 70 for the SLG46824 Memory Map.
Note 11: The 16 programmed bytes should be in the same page.
Data “1” cannot be re-programmed as data “0” without erasure. Each byte can only be programmed one time without erasure.
A10 will be ignored during communication to SLG46824.
A9 = 1 will enable access to the NVM.
A9 = 1 and A8 = 0 corresponds to the 2K bits chip configuration NVM data.
A9 = 1 and A8 = 1A3, A2, A1, and A0 should be 0000 for the page write operation.
In a single page, if the content of only one byte needs to be programmed, the content of the other 15 bytes should be set to 0x00
except for the byte with custom content.
Figure 69: Page Write Command
X X X X
A
10
A
9
A
8 W
Control Byte
Word Address (n)
Control
Code
Block
Address
R/W bit
S
ACK
Acknowledge
bit
Start
bit
Data (n)
Stop
bit
SDA LINE
Bus Activity
ACK
Data (n + 1)
ACK
ACK
Data (n + 15)
P
Acknowledge
bit
ACK
A
7
A
6
A
5
A
4
A
3
A
2
A
1
A
0


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