MCP79510-I/MS Microchip Technology, MCP79510-I/MS Datasheet - Page 32

• Manufacturer Part Number: MCP79510-I/MS
• Description: SPI GP RTCC, 1Kb EE, 64B SRAM, ID 10 MSOP 3x3mm TUBE
• Manufacturer: Microchip Technology

MCP7952X/MCP7951X
9.1.7
The Write Status Register (SRWRITE) instruction
allows the user to select one of four levels of protec-
tion for the array by writing to the appropriate bits in
the STATUS register. The array is divided up into four
segments. The user has the ability to write-protect
none, one, two, or all four of the segments of the array.
The partitioning is controlled as shown in
See
TABLE 9-2:
FIGURE 9-6:
DS22300A-page 32
SCK
SO
CS
Figure 9-6
BP1
SI
0
0
1
1
WRITE STATUS REGISTER
(SRWRITE)
for the SRWRITE timing sequence.
0
0
ARRAY PROTECTION
BP0
0
1
0
1
0
WRITE STATUS REGISTER TIMING SEQUENCE
1
0
2
Instruction
Array Addresses
Write-Protected
(2 kbit shown)
0
3
(C0h-FFh)
(80h-FFh)
(00h-FFh)
upper 1/4
upper 1/2
none
0
all
4
Table
0
5
9-2.
High-Impedance
Preliminary
0
6
1
7
7
8
6
9
Data to STATUS Register
10
5
11
4
12
3
 2012 Microchip Technology Inc.
13
2
14
1
15
0
T
WC