User`s manual

Support Information
Expansion Connector
User’s Manual M9328MX1ADS - Rev 2
MOTOROLA Support Information 45
3.13 Expansion Connector
Connector P19 is the Expansion connector. All the signals of
MC9328MX1 are connected to this 16x3-pin connector except data
bus, address bus, EIM control signals and SDRAM control signals.
Figure 3-12 gives the pin assignment and Table 3-12. gives the
signal descriptions for this connector.
Figure 3-12 Connectors P19 and P20 Pin Assignments
16151413121110987654321
C • • • • • • • • • • • • • • • •
B • • • • • • • • • • • • • • • •
A
• • • • • • • • • • • • • • • •
Table 3-12. Expansion Connector P19 Signal Description
Pin Mnemonic Signal
A1,B1,C1 GND GROUND
A2 PWMO PULSE WIDTH MODULATED OUTPUT - Output of the PWM module
A3 MOSI MASTER OUT / SLAVE IN - SPI data signal (bidirectional)
A4
SCLK
SERIAL CLOCK
A5 UART1_TXD UART1 TRANSMITTED DATA - Serial output signal.
A6 SSI_TXCLK SYCHRONOUS SERIAL INTERFACE TRANSMITTER CLOCK - Bidirectional
A7 SSI_RXDAT SYCHRONOUS SERIAL INTERFACE RECEIVED DATA - Serial input signal
A8 UART2_RXD UART2 RECEIVED DATA - Serial output signal
A9 UART2_CTS UART2 CLEAR TO SEND - Active low output signal
A10 USBD_VM USB VOLTAGE MINUS INPUT
A11 USBD_RCV USB RECEIVED DATA INPUT
A12 SIM_CLK SIMCLOCK - Output clock to SIM card
A13,C12 SIM_TX,SIM
_RX
SIM TRANSMITTED/ SIM RECEIVED DATA - SIM card data, tied together
externally through zero ohm resistor.
A14 SD_CMD SD/MMC COMMAND - Serial command bit to SD/MMC card, bidirectional