*EUR/USD pegged to the lows as ECB's Coeure pours a bit of gas on the fire.
*Coeure says ECB will buy bonds on the secondary mkt if it need to for monetary.
*policy and will not do so otherwise; ECB lending to ESM to buy Govt bonds in.
*unlimited manner wouldn't comply with EU treaty.
*Mkt sees no bounce for EUR/USD; Through 1.2260 targets July '10 low (1.2190).