Microchip Technology ADM00419 Data Sheet
2011 Microchip Technology Inc.
DS22288A-page 49
MCP2210
3.2.8
SET GPIO CURRENT PIN VALUE
3.2.8.1
Responses
FIGURE 3-19:
SET GPIO CURRENT PIN VALUE LOGIC FLOW
TABLE 3-48:
COMMAND STRUCTURE
Byte
Index
Meaning
0
0x30 – Set (VM) GPIO Current Pin Value
1
0x00 – Reserved
2
0x00 – Reserved
3
0x00 – Reserved
4
GPIO Pin Value – 16-bit value (low byte):
• MSB – – – – – – LSB
• MSB – – – – – – LSB
GP7VAL GP6VAL GP5VAL GP4VAL GP3VAL GP2VAL GP1VAL GP0VAL
5
GPIO Pin Value – 16-bit value (high byte):
• MSB – – – – – – LSB
• MSB – – – – – – LSB
x x x x x x x GP8VAL
6-63
0x00 – Reserved
Note 1:
The GPIO pin value will have an effect only on those GPs previously configured as GPIOs.
TABLE 3-49:
RESPONSE 1 STRUCTURE
Byte
Index
Meaning
0
0x30 – Set (VM) GPIO Current Pin Value – echos back the given command code
1
0x00 - Command Completed Successfully
2
Don’t Care
3
Don’t Care
4
Read Back Actual GPIO Pin Value – 16-bit value (low byte):
• MSB – – – – – – LSB
• MSB – – – – – – LSB
GP7VAL GP6VAL GP5VAL GP4VAL GP3VAL GP2VAL GP1VAL GP0VAL
5
Read Back Actual GPIO Pin Value – 16-bit value (high byte):
• MSB – – – – – – LSB
• MSB – – – – – – LSB
x x x x x x x GP8VAL
6-63
Don’t Care
Set RAM GPIO
Output Value
Response 1
RAM GPIO
Output Value
Written