 |
Electronic Components Datasheet Search |
|
|
Electronic Components Datasheet Search |
|
MC9328MX21SVM Datasheet(PDF) 6 Page - Freescale Semiconductor, Inc |
|
||||||||||||||||||||||||||||||
MC9328MX21SVM Datasheet(HTML) 6 Page - Freescale Semiconductor, Inc |
|
|
6 / 88 page  MC9328MX21S Technical Data, Rev. 1.1 6 Freescale Semiconductor Signal Descriptions CAS SDRAM Column Address Select signal SDWE SDRAM Write Enable signal SDCKE0 SDRAM Clock Enable 0 SDCKE1 SDRAM Clock Enable 1 SDCLK SDRAM Clock Clocks and Resets EXTAL26M Crystal input (26MHz), or a 16 MHz to 32 MHz oscillator (or square-wave) input when the internal oscillator circuit is shut down. When using an external signal source, feed this input with a square wave signal switching from GND to VDDA. XTAL26M Oscillator output to external crystal. When using an external signal source, float this output. EXTAL32K 32 kHz or 32.768 kHz crystal input. When using an external signal source, feed this input with a square wave signal switching from GND to QVDD5. XTAL32K Oscillator output to external crystal. When using an external signal source, float this output. CLKO Clock Out signal selected from internal clock signals. Please refer to clock controller for internal clock selection. EXT_48M This is a special factory test signal. To ensure proper operation, connect this signal to ground. EXT_266M This is a special factory test signal. To ensure proper operation, connect this signal to ground. RESET_IN Master Reset—External active low Schmitt trigger input signal. When this signal goes active, all modules (except the reset module, SDRAMC module, and the clock control module) are reset. RESET_OUT Reset Out—Internal active low output signal from the Watchdog Timer module and is asserted from the following sources: Power-on reset, External reset (RESET_IN), and Watchdog time-out. POR Power On Reset—Active low Schmitt trigger input signal. The POR signal is normally generated by an external RC circuit designed to detect a power-up event. CLKMODE[1:0] These are special factory test signals. To ensure proper operation, leave these signals as no connects. OSC26M_TEST This is a special factory test signal. To ensure proper operation, leave this signal as a no connect. TEST_WB[2:0] These are special factory test signals. However, these signals are also multiplexed with GPIO PORT E as well as alternate keypad signals. If not using these signals for GPIO functions or for other multiplexed functions, then configure as GPIO input with pull-up enabled, and leave as a no connect. TEST_WB[4:3] These are special factory test signals. To ensure proper operation, leave these signals as no connects. WKGD Battery indicator input used to qualify the walk-up process. Also multiplexed with TIN. JTAG For termination recommendations, see the Table “JTAG pinouts” in the Multi-ICE® User Guide from ARM® Limited. TRST Test Reset Pin—External active low signal used to asynchronously initialize the JTAG controller. TDO Serial Output for test instructions and data. Changes on the falling edge of TCK. TDI Serial Input for test instructions and data. Sampled on the rising edge of TCK. TCK Test Clock to synchronize test logic and control register access through the JTAG port. TMS Test Mode Select to sequence the JTAG test controller’s state machine. Sampled on the rising edge of TCK. JTAG_CTRL JTAG Controller select signal—JTAG_CTRL is sampled during the rising edge of TRST. Must be pulled to logic high for proper JTAG interface to debugger. Pulling JTAG_CRTL low is for internal test purposes only. Table 2. i.MX21S Signal Descriptions (Continued) Signal Name Function/Notes |
Similar Part No. - MC9328MX21SVM |
|
Similar Description - MC9328MX21SVM |
|
|
Link URL |
| Privacy Policy |
| ALLDATASHEET.COM |
| Does ALLDATASHEET help your business so far? [ DONATE ] |
About Alldatasheet | Advertisement | Datasheet Upload | Contact us | Privacy Policy | Link Exchange | Manufacturer List All Rights Reserved©Alldatasheet.com |
| Russian : Alldatasheetru.com | Korean : Alldatasheet.co.kr | Spanish : Alldatasheet.es | French : Alldatasheet.fr | Italian : Alldatasheetit.com Portuguese : Alldatasheetpt.com | Polish : Alldatasheet.pl | Vietnamese : Alldatasheet.vn Indian : Alldatasheet.in | Mexican : Alldatasheet.com.mx | British : Alldatasheet.co.uk | New Zealand : Alldatasheet.co.nz |
|
Family Site : ic2ic.com |
icmetro.com |
English ▼
English
Chinese
German
Japanese
Russian
Korean
Spanish
French
Italian
Portuguese
Polish
Vietnamese
Indian
Mexican
British
New Zealand
