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405GP датащи(PDF) 12 Page - Applied Micro Circuits Corporation |
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405GP датащи(HTML) 12 Page - Applied Micro Circuits Corporation |
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12 / 59 page ![]() 405GP – Power PC 405GP Embedded Processor 12 AMCC Revision 2.03 – September 7, 2007 Data Sheet IIC Bus Interface • Compliant with Philips® Semiconductors I2C Specification, dated 1995 • Operation at 100kHz or 400kHz •8-bit data • 10- or 7-bit address • Slave transmitter and receiver • Master transmitter and receiver • Multiple bus masters • Supports fixed VDD IIC interface • Two independent 4 x 1 byte data buffers • Twelve memory-mapped, fully programmable configuration registers • One programmable interrupt request signal • Provides full management of all IIC bus protocol • Programmable error recovery General Purpose IO (GPIO) Controller • Controller functions and GPIO registers are programmed and accessed via memory-mapped OPB bus master accesses • 23 GPIOs are pin-shared with other functions. DCRs control whether a particular pin that has GPIO capabilities acts as a GPIO or is used for another purpose. The 23 GPIOs are multiplexed with: - 7 of 8 chip selects - All seven external interrupts - All nine instruction trace pins • Each GPIO output is separately programmable to emulate an open-drain driver (i.e., drives to zero, three- stated if output bit is 1) |
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