参数资料
型号: MCP23016-I/SS
元件分类: 微控制器/微处理器
英文描述: 16 I/O, PIA-GENERAL PURPOSE, PDSO28
封装: 0.209 INCH, PLASTIC, SSOP-28
文件页数: 38/38页
文件大小: 543K
代理商: MCP23016-I/SS
2007 Microchip Technology Inc.
DS20090C-page 9
MCP23016
1.7.4
I/O DIRECTION REGISTERS
Two registers control the direction of data I/O:
IODIR0 (controls GP0)
IODIR1 (controls GP1)
When a bit in these registers is set, the corresponding
pin becomes an input. Otherwise, it becomes an
output. At Power-on Reset, the device ports are
configured as inputs.
REGISTER 1-7:
IODIR0 - I/O DIRECTION REGISTER 0
REGISTER 1-8:
IODIR1 - I/O DIRECTION REGISTER 1
R/W-1
IOD0.7
IOD0.6
IOD0.5
IOD0.4
IOD0.3
IOD0.2
IOD0.1
IOD0.0
bit 7
bit 0
bit 7-0
IOD0.0:IO0.7: Controls the direction of data I/O
1
= Input
0
= Output
Legend:
R = Readable bit
W = Writable bit
U = Unimplemented bit, read as ‘0’
- n = Value at POR
‘1’ = Bit is set
‘0’ = Bit is cleared
x = Bit is unknown
R/W-1
IOD1.7
IOD1.6
IOD1.5
IOD1.4
IOD1.3
IOD1.2
IOD1.1
IOD1.0
bit 7
bit 0
bit 7-0
IOD1.0:IO1.7: Controls the direction of data I/O
1
= Input
0
= Output
Legend:
R = Readable bit
W = Writable bit
U = Unimplemented bit, read as ‘0’
- n = Value at POR
‘1’ = Bit is set
‘0’ = Bit is cleared
x = Bit is unknown
相关PDF资料
PDF描述
MCP23016-I/SO 16 I/O, PIA-GENERAL PURPOSE, PDSO28
MCP23016-I/SP 16 I/O, PIA-GENERAL PURPOSE, PDIP28
MCP23S17T-E/SO 16 I/O, PIA-GENERAL PURPOSE, PDSO28
MCP23017-E/SP 16 I/O, PIA-GENERAL PURPOSE, PDIP28
MCP23S17-E/SS 16 I/O, PIA-GENERAL PURPOSE, PDSO28
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