Microchip Technology MCP3421DM-WS Data Sheet
© 2009 Microchip Technology Inc.
DS39632E-page 193
PIC18F2455/2550/4455/4550
FIGURE 18-2:
TIMING FOR MICROCONTROLLER WRITE ADDRESS, WRITE DATA AND
READ DATA (NO WAIT STATES)
READ DATA (NO WAIT STATES)
FIGURE 18-3:
TIMING FOR USB WRITE ADDRESS AND DATA (4 WAIT STATES)
FIGURE 18-4:
TIMING FOR USB WRITE ADDRESS AND READ DATA (4 WAIT STATES)
F
OSC
/4
OESPP
CK1SPP
CK2SPP
CSSPP
SPP<7:0>
MOVWF SPPEPS
MOVWF SPPDATA
Write Address
Write Data
MOVF SPPDATA, W
Read Data
ADDR
DATA
DATA
USB Clock
OESPP
CK1SPP
CK2SPP
CSSPP
SPP<7:0>
2 Wait States
2 Wait States
2 Wait States
2 Wait States
Write Data
Write Address
USB Clock
OESPP
CK1SPP
CK2SPP
CSSPP
SPP<7:0>
Write Address
Read Data
2 Wait States
2 Wait States
2 Wait States
2 Wait States