With default magento you can create coupon code from admin, but sometime you need to create coupon code programmatically .. Below code will helps to create coupon code with any attribute combination.
Magento create coupon code programmatically.

<?php
/**
 * Create Shopping Cart Sales Rule with Specific Coupon Code Programmatically
 */
 
// All customer group ids
$customerGroupIds = Mage::getModel('customer/group')->getCollection()->getAllIds();
// SalesRule Rule model
$rule = Mage::getModel('salesrule/rule');
 
// Rule data
$rule->setName('Rule name')                                             
    ->setDescription('Rule description')
    ->setFromDate('')
    ->setCouponType(Mage_SalesRule_Model_Rule::COUPON_TYPE_SPECIFIC)
    ->setCouponCode('my-coupon-code')
    ->setUsesPerCustomer(1)
    ->setUsesPerCoupon(1)
    ->setCustomerGroupIds($customerGroupIds)
    ->setIsActive(1)
    ->setConditionsSerialized('')
    ->setActionsSerialized('')
    ->setStopRulesProcessing(0)
    ->setIsAdvanced(1)
    ->setProductIds('')
    ->setSortOrder(0)
    ->setSimpleAction(Mage_SalesRule_Model_Rule::BY_FIXED_ACTION)
    ->setDiscountAmount(10)
    ->setDiscountQty(1)
    ->setDiscountStep(0)
    ->setSimpleFreeShipping('0')
    ->setApplyToShipping('0')
    ->setIsRss(0)
    ->setWebsiteIds(array(1))
    ->setStoreLabels(array('My Rule Frontend Label'));
 
// Product found condition type
$productFoundCondition = Mage::getModel('salesrule/rule_condition_product_found')
    ->setType('salesrule/rule_condition_product_found')
    ->setValue(1)               // 0 == not found, 1 == found
    ->setAggregator('all');     // match all conditions
 
// 'Attribute set id 1' product condition
$attributeSetCondition = Mage::getModel('salesrule/rule_condition_product')
    ->setType('salesrule/rule_condition_product')
    ->setAttribute('manufacturer')
    ->setOperator('==')
    ->setValue(10);
    
// Bind attribute set condition to product found condition
$productFoundCondition->addCondition($attributeSetCondition);
 
// If a product with 'attribute set id 1' is found in the cart
$rule->getConditions()->addCondition($productFoundCondition);
// Only apply the rule discount to this specific product
$rule->getActions()->addCondition($attributeSetCondition);
 
// Here we go
$rule->save();