MCP2210 MICROCHIP [Microchip Technology], MCP2210 Datasheet - Page 48

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

MCP2210
3.2.7
TABLE 3-46:
3.2.7.1
TABLE 3-47:
FIGURE 3-18:
DS22288A-page 48
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 assigned to a GPIO functionality.
GET GPIO CURRENT PIN VALUE
0x31 – Get (VM) GPIO Current Pin Value
0x00 – Reserved
0x00 – Reserved
0x00 – Reserved
0x31 – Get (VM) GPIO Current Pin Value – echos back the given command code
0x00 – Command Completed Successfully
Don’t Care
Don’t Care
GPIO Pin Value – 16-bit value (low byte):
• MSB
GPIO Pin Value – 16-bit value (high byte):
• MSB
Don’t Care
Responses
GP7VAL GP6VAL GP5VAL GP4VAL GP3VAL GP2VAL GP1VAL GP0VAL
x
COMMAND STRUCTURE
RESPONSE 1 STRUCTURE
GET GPIO CURRENT PIN VALUE LOGIC FLOW
–
x
–
x
–
x
–
–
–
x
–
–
x
Get RAM GPIO
Value Retrieved
Response 1
–
x
RAM GPIO
Value
–
GP8VAL
LSB
Meaning
Meaning
–
–
LSB
 2011 Microchip Technology Inc.