参数资料
型号: MCP23016-I/SP
元件分类: 微控制器/微处理器
英文描述: 16 I/O, PIA-GENERAL PURPOSE, PDIP28
封装: 0.300 INCH, SKINNY, PLASTIC, DIP-28
文件页数: 3/38页
文件大小: 543K
代理商: MCP23016-I/SP
2007 Microchip Technology Inc.
DS20090C-page 11
MCP23016
1.7.6
I/O EXPANDER CONTROL
REGISTER
IOCON0 controls the functionality of the
MCP23016.
The IARES (Interrupt Activity Resolution) bit controls
the sampling frequency of the GP port pins. The higher
the sampling frequency, the higher the device current
requirements. If this bit is ‘0’ (default), the maximum
time to detect the activity on the port is 32 ms (max.),
which results in lower standby current. If this bit is ‘1’,
the maximum time to detect activity on the port is
200 sec. (max.) and results in higher standby current.
REGISTER 1-11:
IOCON0 - I/0 EXPANDER CONTROL REGISTER
U-0
R/W-0
IARES
bit 7
bit 0
bit 1-7
Unimplemented bit: Read as ‘0’
bit 0
IARES
: Interrupt Activity Resolution
1 = Fast sample rate
0 = Normal sample rate
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
IOCON1 is a shadow register for IOCON0. Access to IOCON1 results in access to IOCON0.
相关PDF资料
PDF描述
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
MCP23S17T-E/ML 16 I/O, PIA-GENERAL PURPOSE, PQCC28
MCP23017-E/SO 16 I/O, PIA-GENERAL PURPOSE, PDSO28
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