参数资料
型号: RM48L950PGET
厂商: TEXAS INSTRUMENTS INC
元件分类: 微控制器/微处理器
英文描述: 32-BIT, FLASH, 200 MHz, RISC MICROCONTROLLER, PQFP144
封装: GREEN, PLASTIC, LQFP-144
文件页数: 31/154页
文件大小: 2807K
代理商: RM48L950PGET
PRODUCTPREVIEW
SPNS174
– SEPTEMBER 2011
5.3
General-Purpose Input/Output
The GPIO module on this device supports two ports, GIOA and GIOB. The I/O pins are bidirectional and
bit-programmable. Both GIOA and GIOB support external interrupt capability.
5.3.1
Features
The GPIO module has the following features:
Each IO pin can be configured as:
– Input
– Output
– Open Drain
The interrupts have the following characteristics:
– Programmable interrupt detection either on both edges or on a single edge (set in GIOINTDET)
– Programmable edge-detection polarity, either rising or falling edge (set in GIOPOL register)
– Individual interrupt flags (set in GIOFLG register)
– Individual interrupt enables, set and cleared through GIOENASET and GIOENACLR registers
respectively
– Programmable interrupt priority, set through GIOLVLSET and GIOLVLCLR registers
Internal pullup/pulldown allows unused I/O pins to be left unconnected
For information on input and output timings see Section 3.8 and Section 3.9
126
Peripheral Information and Electrical Specifications
Copyright
2011, Texas Instruments Incorporated
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