MCIMX6Q4AVT08AC Freescale Semiconductor, MCIMX6Q4AVT08AC Datasheet - Page 87

• Manufacturer Part Number: MCIMX6Q4AVT08AC
• Description: Processors - Application Specialized i.MX6Q
• Manufacturer: Freescale Semiconductor
• Type: Multimedia Applicationsr

Specifications of MCIMX6Q4AVT08AC

• Rohs: yes
• Core: ARM Cortex A9
• Processor Series: i.MX6
• Data Bus Width: 32 bit
• Operating Supply Voltage: 1.05 V to 1.5 V
• Memory Type: L1/L2 Cache, ROM, SRAM

4.11.5.2 RMII Mode Timing
In RMII mode, ENET_CLK is used as the REF_CLK, which is a 50 MHz ± 50 ppm continuous reference
clock. ENET_RX_EN is used as the ENET_RX_EN in RMII. Other signals under RMII mode include
ENET_TX_EN, ENET0_TXD[1:0], ENET_RXD[1:0] and ENET_RX_ER.
Figure 52
figure.
Freescale Semiconductor
M16
M17
M18
M19
M20
M21
ID
ENET0_TXD[1:0] (output)
ENET_RX_EN (input)
ENET_CLK pulse width high
ENET_CLK pulse width low
ENET_CLK to ENET0_TXD[1:0], ENET_TX_EN invalid
ENET_CLK to ENET0_TXD[1:0], ENET_TX_EN valid
ENET_RXD[1:0], ENET_RX_EN(ENET_RX_EN), ENET_RX_ER to
ENET_CLK setup
ENET_CLK to ENET_RXD[1:0], ENET_RX_EN, ENET_RX_ER hold
shows RMII mode timings.
ENET_CLK (input)
ENET_RXD[1:0]
ENET_RX_ER
ENET_TX_EN
i.MX 6Dual/6Quad Automotive and Infotainment Applications Processors, Rev. 2
Figure 52. RMII Mode Signal Timing Diagram
Characteristic
Table 62
Table 62. RMII Signal Timing
M20
M18
M21
M19
describes the timing parameters (M16–M21) shown in the
M16
M17
35%
35%
Min
—
2
4
4
65%
65%
Max
Electrical Characteristics
15
—
—
—
ENET_CLK period
ENET_CLK period
Unit
ns
ns
ns
ns
87