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Subject: H3x0 ISP1362 (usbotg) chip connections

H3x0 ISP1362 (usbotg) chip connections

From: Peter D'Hoye <peter.dhoye_at_telenet.be>
Date: 2006-02-18

Hi all (but mostly Linus),

I'm having troubles accessing the isp1362 chip
in the H3x0. I've mapped its CS to 0x30000000
and tried several options in CSCR3 (no success).

I wonder about this:

- MCF5249 users manual page 172, in table 10-9
  about the PS[1:0] CS select bit description
  there is a note: "A0 is not available on the
  external bus". If so, I wonder where A0 and A1
  of the isp1362 are connected to.

- the isp1362 datasheet on page 49 (point 12.9)
  talks about the powermanagement, and mentions
  two pins that must be pulled low to enable
  device and host part of the chip respectively.
  So they are probably connected to the GPIO?
  The two pins should be tied to vcc using a
  resistor. Or I don't understand that part :(

fyi, A0 is pin 61, A1 is pin 62

shall I put the code I have so far somewhere?

thnx,
Peter
Received on Sat Feb 18 20:45:35 2006


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