MCP2510-I/ST View Datasheet(PDF) - Microchip Technology
Part Name
Description
Manufacturer
MCP2510-I/ST Datasheet PDF : 80 Pages
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MCP2510
FIGURE 11-1:
BIT MODIFY
Mask byte 0 0 1 1 0 1 0 1
Data byte X X 1 0 X 0 X 1
Previous
Register 0 1 0 1 0 0 0 1
Contents
Resulting
Register 0 1 1 0 0 0 0 1
Contents
TABLE 11-1: SPI INSTRUCTION SET
Instruction Name Instruction Format
Description
RESET
READ
WRITE
RTS
(Request To Send)
1100 0000
0000 0011
0000 0010
1000 0nnn
Resets internal registers to default state, set configuration mode
Read data from register beginning at selected address
Write data to register beginning at selected address
Sets TXBnCTRL.TXREQ bit for one or more transmit buffers
1000 0nnn
Request to send for TXB2
Request to send for TXB0
Request to send for TXB1
Read Status
Bit Modify
1010 0000
0000 0101
Polling command that outputs status bits for transmit/receive functions
Bit modify selected registers
FIGURE 11-2:
CS
READ INSTRUCTION
SCK
SI
SO
0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23
instruction
address byte
0 0 0 0 0 0 1 1 A7 6 5 4 3 2 1 A0
don’t care
high impedance
data out
76543210
FIGURE 11-3:
CS
BYTE WRITE INSTRUCTION
SCK
SI
SO
0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23
instruction
address byte
data byte
0 0 0 0 0 0 1 0 A7 6 5 4 3 2 1 A0 7 6 5 4 3 2 1 0
high impedance
DS21291F-page 58
© 2007 Microchip Technology Inc.
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