7. I
2
C Interface > Block Diagram
142
Tsi574 User Manual
June 6, 2016
Integrated Device Technology
www.idt.com
7.3
Block Diagram
shows an overview of the I
2
C Interface. The shaded area is the block logic. The master and
slave interfaces mux between control of the I2C_SD and I2C_SCLK I/O buffers, and connect through
the package to the buses on the board. The reference clock (P_CLK) and active-low hard reset are
inputs to the block. The power-up reset values are either static signals from outside the block, or
connect to package pins for board-level configuration. The I2C_MA pin is a power-up configuration
pin that is latched during reset.
On the core side, the I
2
C block connects to the internal device register bus as a slave and master:
•
As a slave, it enables access to the I
2
C block registers by a host or processor.
•
As a master, it enables access to other device registers (for example, during the I
2
C load at
power-up).
In addition, various signals relate to the boot load sequencer, an interrupt signal connects to the Tsi574
Interrupt Controller, and device-level status connects to the EXI2C_STAT register in the externally
visible registers.
Содержание IDT Tsi574
Страница 1: ...IDT Tsi574 Serial RapidIO Switch User Manual June 6 2016 Titl...
Страница 20: ...About this Document 20 Tsi574 User Manual June 6 2016 Integrated Device Technology www idt com...
Страница 34: ...1 Functional Overview JTAG Interface 34 Tsi574 User Manual June 6 2016 Integrated Device Technology www idt com...
Страница 100: ...4 Internal Switching Fabric Packet Queuing 100 Tsi574 User Manual June 6 2016 Integrated Device Technology www idt com...
Страница 224: ...11 Signals Pinlist and Ballmap 224 Tsi574 User Manual June 6 2016 Integrated Device Technology www idt com...
Страница 490: ...B Clocking P_CLK Programming 490 Tsi574 User Manual June 6 2016 Integrated Device Technology www idt com...
Страница 512: ...Index 512 Tsi574 User Manual June 6 2016 Integrated Device Technology www idt com...