On MCF51JM128 Reference Manual rev.2 page 89 there's a figure 4-15 which tells
the procedure for Clearing Security on a MCF51JM128 via the BDM port.
I've built my self an USB programmer, but a bug on it made my MCF51JM32VLD device secured, because
XCSR is reading as 0x87 and not 0x85 just after a POR with BKGD held low. So I know the device is secured.
I want to unsecure this device, doing a mass erase, but the procedure in the figure 4-15 is cryptic, as it tells
to write PTIMER bits to CSR3, and then PTIMER info would be transfered to FTSR.
But nowhere in the manuals FTSR and PTIMER names are defined. I figured out by MCF51EM256 Reference Manual that FTSR means "Flash Controller", but PTIMER is still foggy.
Can someone tell me what byte value should I write to CSR3 prior to write 0x97 to XCSR?
My MCF51JM32VLD device is halted after POR, so it's clock is FEI@10MHz. The flash divider value is 0x19 (25 decimal) as usual for this setup.
Thanks in advance.