IMX51A 查看數據表（PDF） - Freescale Semiconductor
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IMX51A Datasheet PDF : 172 Pages
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IOMUX Configuration for Boot Media
3.4 eCSPI/CSPI IOMUX Pin Configuration
The contacts assigned to the signals used by the three SPI modules is shown in Table 7.
Table 7. SPI IOMUX Pin Configuration
Signal
eCSPI1
eCSPI2
CSPI
MISO CSPI1_MISO.alt0 NANDF_RB3.alt2 USBH1_NXT.alt1
MOSI CSPI1_MOSI.alt0 NANDF_D15.alt2 USBH1_DIR.alt1
RDY CSPI1_RDY.alt0 NANDF_RB1.alt2 USBH1_STP.alt1
SCLK
SS0
CSPI1_SCLK.alt0
N/A1
NANDF_RB2.alt2
N/A
USBH1_CLK.alt1
N/A
SS1
N/A
N/A
USBH1_DATA5.alt1
SS2
N/A
N/A
N/A
SS3
N/A
N/A
N/A
1 N/A in the ROM code indicates the pins are not available.
3.5 Wireless External Interface Module (WEIM)
The WEIM interface signals are not configured in the IOMUX. The WEIM interface uses dedicated
contacts on the IC.
3.6 UART IOMUX Pin Configuration
The contacts assigned to the signals used by the three UART modules are shown in Table 8.
Table 8. UART IOMUX Pin Configuration
Signal
UART1
UART2
UART3
TXD
RXD
UART1_TXD.alt0 UART2_TXD.alt0
UART1_RXD.alt0 UART2_RXD.alt0
UART3_TXD.alt1
UART3_RXD.alt1
CTS
RTS
UART1_CTS.alt0 USBH1_DATA0.alt1 KEY_COL5.alt2
UART1_RTS.alt0 USBH1_DATA3.alt1 KEY_COL4.alt2
3.7 USB-OTG IOMUX Pin Configuration
The interface signals of the UTMI PHY are not configured in the IOMUX. The UTMI PHY interface uses
dedicated contacts on the IC. The contacts assigned to the signals used by the three UART modules are
shown in Table 9.
Table 9. ULPI PHY IOMUX Pin Configuration
Signal
USB_PWR
USB_OC
ULPI PHY
GPIO1_8.alt1
GPIO1_9.alt1
i.MX51A Automotive and Infotainment Applications Processors, Rev. 2
Freescale Semiconductor
15
Preliminary—Subject to Change Without Notice
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