Everything you want to know about Mexican monetary policy, Mexican financial and payment systems, Mexican currency, Mexican banknotes and Mexican coins can be found at the Banco de Mexico site: BANXICO English language website.
BANXICO: “Banco de México is the central Bank of Mexico. Under the Constitution, it is autonomous in its operations and management. Its main function is to provide currency to the domestic economy. In discharging this task, the Bank’s priority is to ensure the stability of the currency’s purchasing power. Its other functions are to promote both the sound development of the financial system and the optimal functioning of the payment systems.”
The BANXICO site includes detailed sections on: