MCP2210 MICROCHIP [Microchip Technology], MCP2210 Datasheet - Page 53

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

3.4
The External Interrupt pin event status command is used by the USB host to query the external interrupt events recorded
by the MCP2210. In order to have the MCP2210 record the number of external interrupt events, GP6 must be configured
to have its dedicated function active.
3.4.1
TABLE 3-56:
3.4.1.1
TABLE 3-57:
FIGURE 3-22:
 2011 Microchip Technology Inc.
Index
Index
63-63
Byte
Byte
2-63
0
1
0
1
2
3
4
5
External Interrupt Pin (GP6) Event Status
GET (VM) THE CURRENT NUMBER OF EVENTS FROM THE INTERRUPT PIN
0x12 – Get (VM) the Current Number of Events from the Interrupt Pin – echos back the given
command code
0x00 – Command Completed Successfully
Don’t Care
Don’t Care
Interrupt Event Counter – 16-bit value (low byte)
Interrupt Event Counter – 16-bit value (high byte)
Don’t Care
0x12 – Get (VM) the Current Number of Events From the Interrupt Pin
Reset or Not the Event Counter
• 0x00 – reads, then resets the event counter
• Any other value – the event counter is read, however, the counter is not reset
0x00 - Reserved
Responses
COMMAND STRUCTURE
RESPONSE 1 STRUCTURE
GET (VM) THE CURRENT NUMBER OF EVENTS FROM THE INTERRUPT PIN
LOGIC FLOW
Interrupt Pin Events
Pin Event Counter
External Interrupt
Value Retrieved
Response 1
Get External
Counter
Meaning
Meaning
MCP2210
DS22288A-page 53