MCP2210 MICROCHIP [Microchip Technology], MCP2210 Datasheet - Page 46

• Manufacturer Part Number: MCP2210
• Description: USB-to-SPI Protocol Converter with GPIO (Master Mode)
• Manufacturer: MICROCHIP [Microchip Technology]

MCP2210
3.2.5
TABLE 3-42:
3.2.5.1
TABLE 3-43:
FIGURE 3-16:
DS22288A-page 46
Note 1:
Index
Index
Byte
Byte
3-63
6-63
0
1
2
0
1
2
3
4
5
This command will only have an effect on those GPs previously configured as GPIOs.
GET (VM) GPIO CURRENT PIN DIRECTION
0x33 – Get (VM) GPIO Current Pin Direction
0x00 – Reserved
0x00 – Reserved
0x00 – Reserved
0x33 – Get (VM) GPIO Current Pin Direction – echos back the given command code
0x00 – Command Completed Successfully
Don’t Care
Don’t Care
GPIO Direction – 16-bit value (low byte):
• MSB
GPIO Direction – 16-bit value (high byte):
• MSB
Don’t Care
Responses
GP7DIR GP6DIR GP5DIR GP4DIR GP3DIR GP2DIR GP1DIR GP0DIR
x
COMMAND STRUCTURE
RESPONSE 1 STRUCTURE
GET (VM) GPIO CURRENT PIN DIRECTION LOGIC FLOW
–
x
–
x
–
x
–
–
–
x
–
–
x
Get RAM GPIO
Response 1
–
x
RAM GPIO
Direction
Retrieved
Direction
–
GP8DIR
LSB
Meaning
Meaning
–
–
LSB
 2011 Microchip Technology Inc.