Toradex Colibri Migration Guide
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Notes
:
1. IF_DD<7>, CIF_MCLK, CIF_PCLK, CIF_HSYNC and CIF_VSYNC (former GPIO 56 and 59-62)
on PXA320 don’t have an alternate function GPIO.
Recommendation for PXA320 and compatible designs:
Don’t use SODIMM pin 94 (CIF_HSYNC) and SODIMM pin 96 (CIF_PCLK) as GPIO. You can use SODIMM pins 59, 75 and 81(CIF_DD<7>, CIF_MCLK and CIF_VSYNC) as GPIO because there is another GPIO multiplexed to
this SODIMM pins. Set the alternate function of CIF_DD<7>, CIF_MCLK and CIF_VSYNC to 0x7 (tristate) if you woul
d like to use the multiplexed GPIO’s.
2. The Colibri PXA300 module does
n’t have PCMCIA, audio and touch interface.
3. On the Colibri PXA300/PXA310 modules, some GPIOs are connected to two SODIMM pins each. Be careful by using these pins.
4. The Colibri PXA310 and Colibri T20
doesn’t have PCMCIA signals.
5.
The Colibri PXA270 doesn’t have the SYS_EN signal.
6. These signals are not 100% compatible between Colibri PXA300 and PXA310. Take care when developing a combined baseboard for Colibri PXA300/PXA310.
7. PWR_GPIO2 on
the Colibri PXA310 is the GPIO2 of the National PMIC LP3972. It’s not recommended to use this pin on Colibri PXA310 or designs that have to be compatible with the Colibri PXA310.
8. These pins are connected to an SODIMM pin and to an extension connector pin. Be careful by using these pins when using the extension connector.
9. Do not connect this pin.
10. Colibri PXA320 V2.0 and higher: You can use this pin as GPIO. For more details please refer to the Colibri PXA320 datasheet.
All other Colibri PXA3xx modules and versions:
This pin is always nWE (DF_ALE_nWE). It’s not possible to use this pin as GPIO.
11. SODIMM Pin 95:
Colibri PXA270: GPIO18 is always alternate function RDY (used internally).
up to HW V1.2: Because of a bug in the Ethernet Controller on the Colibri PXA270
this pin can’t be used. Do not connect this pin.
HW V2.1 and higher: RDY can be used for VLIO bus accesses with a common pull-down circuit.
12. These pins are used when updating the CPLD on the PXA (SODIMM pin 88, 90, 92). Do not drive these pins until the CPLD update is done. The CPLD update has to be started manually (Toradex Bootloader V3.3 and higher).
You can use these pins when not performing a CPLD update.
13. These pins have an internal pull-up of about 10kOhm.
14. PXA310 GPIO97 has an internal pull-down of about 75kOhm.
PXA310 GPIO98 has an internal pull-up of about 1MOhm.
15. Analog input voltage range is not the same for all Colibri modules. See chapter 2.7 section 10.
16. Supply VSS_AUDIO and AVDD_AUDIO
even if you don’t need any of the analog function of the Colibri module.
17. Dedicated matrix keypad functions are not available on the Colibri T20/T30. As an alternative normal GPIOs can be used to realize a matrix keypad interface
18. SYSCLK not available on Colibri T20/T30
19. Colibri PXA3xx does not have PWM<D>
20. The Colibri T20/T30 does not have an RDnWR singal, instead we provide the GMI_WR_N
21. The Colibri T20/T30 does not have a CHOUT function
22. This pin needs to be connected even if the internal RTC is not used
23. The Colibri T20/T30 does not have DQM signals
24. On the Colibri T20/T30 the address signals are mapped differently than on the Colibri PXAxxx, please see the Colibri T20 Datasheet for more information
Содержание Colibri PXA270
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