MCP2210 Datasheet, PDF (41/82 Pages) Microchip Technology – USB-to-SPI Protocol Converter with GPIO (Master Mode)

MCP2210
TABLE 3-39: RESPONSE 1 STRUCTURE (CONTINUED)
Byte
Index
Meaning
14
15
16
17
18
19-63
Default GPIO Output – 16-bit value (high byte):
• MSB –
xx
–––
xx x
– – LSB
x x GP8
where x = Don’t Care
Default GPIO Direction – 16-bit value (low byte):
• MSB
–
–
–
–
–
–
LSB
GP7DIR GP6DIR GP5DIR GP4DIR GP3DIR GP2DIR GP1DIR GP0DIR
Default GPIO Direction – 16-bit value (high byte):
• MSB –
xx
–––
xx x
– – LSB
x x GP8DIR
Other Chip Settings – Enable/Disable Wake-up, Interrupt Counting, SPI Bus Release Options
• Bit 7 – Don’t Care
• Bit 6 – Don’t Care
• Bit 5 – Don’t Care
• Bit 4 – Remote Wake-up Enabled/Disabled
- 0 – Remote Wake-up Disabled
- 1 – Remote Wake-up Enabled
• Bit 3 – Dedicated Function – Interrupt Pin mode
• Bit 2 – Dedicated Function – Interrupt Pin mode
• Bit 1 – Dedicated Function – Interrupt Pin mode
- b111 – Reserved
- b110 – Reserved
- b101 – Reserved
- b100 – Count High Pulses
- b011 – Count Low Pulses
- b100 – Count High Pulses
- b011 – Count Low Pulses
- b010 – Count Rising Edges
- b001 – Count Falling Edges
- b000 – No Interrupt Counting
• Bit 0 – SPI Bus Release Enable
- 0 = SPI Bus is Released between transfer
- 1 = SPI Bus is Not Released by the MCP2210 between transfers
NVRAM Chip Parameters Access Control
• 0x00 – Chip settings not protected
• 0x40 – Chip settings protected by password access
• 0x80 – Chip settings permanently locked
Don’t Care
 2011 Microchip Technology Inc.
DS22288A-page 41