User`s manual

Support Information
UART Connectors
User’s Manual M9328MX1ADS - Rev 2
MOTOROLA Support Information 33
3.3 UART Connectors
Connectors P11 and P12 are the MX1ADS UART connectors. Figure 3-2 gives
the pin assignments and Table 3-2 gives the signal descriptions for UART1
connector P11 and UART2 connector P12.
48, 50, 52, 54,
69, 71
~ C S 0 — ~ C S 5
(not in exact
order)
CHIP SELECTS (lines 0 - 5) - Chip-select signals, active-low outputs.
57 ~RESETSF RESET SYNC FLASH - Active low output
58 MOSI MASTER OUT / SLAVE IN - SPI data signal (bidirectional)
59 MISO MASTER IN / SLAVE OUT - SPI data signal (bidirectional)
60 SS
SLAVE SELECT - bidirectional, active low, input in slave mode, output in
master mode
61, 74 SDCLK SDRAM clock - output to SDRAM
62, 68 SDCKE0,
SDCKE1
SDRAM CLOCK ENABLE 0 & 1 - Active high outputs to SDRAM
65 ~RAS ROW ADDRESS STROBE -clocks row address to SDRAM
66 ~CAS
COLUMN ADDRESS STROBE - clocks column address to SDRAM
67 SDWE SDRAM WRITE ENABLE - write data strobe to SDRAM, active low
72 SPI_RDY
SPI READY - CSPI serial burst trigger, active low input
73 ~RESET RESET — Active-low reset signal to the processor
78,80 SIM_TX,SIM_RX SIM TRANSMITTED/ SIM RECEIVED DATA - SIM card data, tied
together externally through zero ohm resistor.
84 SIM_SVEN SIM VCC ENABLE - enable power to the SIM card, active low
86 SIM_PD SIM PRESENCE DETECT - Active low input
88 SIM_CLK SIMCLOCK - output clock to SIM card
90 SIM_RST SIM RESET - Active low output to SIM card
109, 111 MA10, MA11 MUXED ADDRESS 10 & 11 - Multiplexed addresses to SDRAM
Table 3-1 SODIMM Connector J2 Signal Descriptions (Continued)
Pin Mnemonic Signal