Automotive Module Series
AG525R-GL QuecOpen
Hardware Design
AG525R-GL_QuecOpen_Hardware_Design 61 / 104
Table 21: Parameters of SPI Interface Timing
The module provides a 1.8 V SPI interface. A level translator should be used between the module and the
host if customers’ application is equipped with a 3.3 V processor or device interface.
3.15. RGMII Interface
The module includes an integrated Ethernet MAC with an RGMII interface. Key features of the RGMII
interface are shown below:
Support IEEE 1588-2008, IEEE 802.1AS-2011 and 802.1-Qav-2009
Half/full duplex for 10/100/1000 Mbps
Support VLAN tagging
Can be used to connect to external Ethernet PHY like 88EA1512, or an external switch
Table 22: Pin Definition of RGMII Interface
Parameter Description Min. Typ. Max. Unit
T SPI clock period 20.0 - - ns
t(ch) SPI clock high-level time 9.0 - - ns
t(cl) SPI clock low-level time 9.0 - - ns
t(mov) SPI master data output valid time -5.0 - 5.0 ns
t(mis) SPI master data input setup time 5.0 - - ns
t(mih) SPI master data input hold time 1.0 - - ns
Pin Name Pin No. I/O Description Comment
RGMII_MD_IO 10 IO RGMII MDIO management data
Power domain determined
by RGMII_PWR_IN
RGMII_MD_CLK 11 DO RGMII MDC management clock
RGMII_RX_0 13 DI RGMII receive data bit 0
RGMII_RX_1 14 DI RGMII receive data bit 1
NOTE