MC9328MX1_06 Datasheet, PDF (8/100 Pages) Freescale Semiconductor, Inc – MX Family of applications processors

Signals and Connections
Table 2. i.MX1 Signal Descriptions (Continued)
Signal Name
SD_CLK
SD_DAT [3:0]
MS_BS
MS_SDIO
MS_SCLKO
MS_SCLKI
MS_PI0
MS_PI1
UART1_RXD
UART1_TXD
UART1_RTS
UART1_CTS
UART2_RXD
UART2_TXD
UART2_RTS
UART2_CTS
UART2_DSR
UART2_RI
UART2_DCD
UART2_DTR
UART3_RXD
UART3_TXD
UART3_RTS
UART3_CTS
UART3_DSR
UART3_RI
UART3_DCD
UART3_DTR
SSI_TXDAT
SSI_RXDAT
Function/Notes
MMC Output Clock
Data—If the system designer does not wish to make use of the internal pull-up, via the Pull-up enable
register, a 50K–69K external pull up resistor must be added.
Memory Stick Interface
Memory Stick Bus State (Output)—Serial bus control signal
Memory Stick Serial Data (Input/Output)
Memory Stick Serial Clock (Input)—Serial protocol clock source for SCLK Divider
Memory Stick External Clock (Output)—Test clock input pin for SCLK divider. This pin is only for test
purposes, not for use in application mode.
General purpose Input0—Can be used for Memory Stick Insertion/Extraction detect
General purpose Input1—Can be used for Memory Stick Insertion/Extraction detect
UARTs – IrDA/Auto-Bauding
Receive Data
Transmit Data
Request to Send
Clear to Send
Receive Data
Transmit Data
Request to Send
Clear to Send
Data Set Ready
Ring Indicator
Data Carrier Detect
Data Terminal Ready
Receive Data
Transmit Data
Request to Send
Clear to Send
Data Set Ready
Ring Indicator
Data Carrier Detect
Data Terminal Ready
Serial Audio Port – SSI (configurable to I²S protocol)
Transmit Data
Receive Data
MC9328MX1 Technical Data, Rev. 7
8
Freescale Semiconductor