Intel EP80579 Guide

Intel
®
EP80579 Integrated Processor Product Line—Synchronous Serial Port (SSP) Interface
Intel
®
EP80579 Integrated Processor Product Line
Platform Design Guide May 2010
253 Order Number: 320068-005US
24.2.2 Microwire* Interface
Microwire is another common serial interface that is widely used to interconnect with
serial devices. The following table shows how the SSP signals can be mapped when
operating in Microwire mode.
24.2.3 Board Design Tip
Implement standard board design rules for low speed signals. When designing a board,
specify board impedances to match anywhere between 45 to 65 ohm.
Figure 152. SSP to Serial Flash Interface Example
SSP_TXD
SSP_SFRM
SSP_EXTCLK
SSP_SCLK
SSP_RXD
SSP Interface
EP80579
EXTERNAL
OSCILLATOR
Serial Flash
D I
CS_N
CLK
DO
7.2 - 3.6864 MHz
Note:
SSP Clock can be
selected from an internal
or external source.
SPI Interface
National Microwire
SSP_SCLK SK - Serial Shift Clock
SSP_TXD SO - Serial Out (Master and Slave)
SSP_RXD SI - Serial In (Master and Slave)
SSP_SFRN CS - Chip Select

Intel EP80579 Specifications

General

Brand	Intel
Model	EP80579
Category	Computer Hardware
Language	English