Datasheet

MCP434X/436X
DS22233A-page 46 © 2009 Microchip Technology Inc.
FIGURE 6-4: 8-Bit Commands (Increment, Decrement, Modify Write Protect or WiperLock
Technology) - SPI Waveform with PIC MCU (Mode 1,1).
FIGURE 6-5: 8-Bit Commands (Increment, Decrement, Modify Write Protect or WiperLock
Technology) - SPI Waveform with PIC MCU (Mode 0,0).
bit7
bit0
bit7
bit6
bit5 bit4
bit3
bit2
bit1 bit0
CS
SCK
Write to
SSPBUF
SDI
Input
Sample
SDO
V
IH
V
IL
AD3
AD2
AD1
AD0
C0
C1
X
X
“1” = Valid Command
“0” = Invalid Command
CMDERR bit
V
IHH
SCK
Input
Sample
SDI
bit7
bit0
SDO bit7
bit6
bit5 bit4
bit3
bit2
bit1 bit0
Write to
SSPBUF
CS
V
IH
V
IL
AD3
AD2
AD1
AD0
C0
C1
X
X
“1” = Valid Command
“0” = Invalid Command
CMDERR bit
V
IHH