Datasheet

 2012-2018 Microchip Technology Inc. DS20002300C-page 38
MCP7951X/MCP7952X
FIGURE 6-4: WRITE STATUS REGISTER SEQUENCE
6.2.2 STATUS REGISTER READ
SEQUENCE
The Read Status Register instruction (SRREAD)
provides access to the STATUS register. The STATUS
register may be read at any time, even during a write
cycle. This allows the user to poll the WIP bit to
determine when a write cycle is complete.
The device is selected by pulling CS
low. The 8-bit
SRREAD instruction is transmitted to the MCP795XX.
The STATUS register value is then shifted out on the
SO pin. The read operation is terminated by driving CS
high (Figure 6-5).
FIGURE 6-5: READ STATUS REGISTER SEQUENCE
SO
SI
CS
91011 12131415
01000000
7654
210
Instruction Data to STATUS Register
High-Impedance
SCK
0 2345671
8
3
SO
SI
CS
91011 12131415
11000000
7654 2 10
Instruction
Data from STATUS Register
High-Impedance
SCK
0 23456718
3