HD64F2145 Datasheet, PDF (434/829 Pages) Renesas Technology Corp – Hitachi 16-Bit Single-Chip Microcomputer

• Selection of 16 internal clocks (in master mode)
• Direct bus drive (SCL/SDA pin)
 Four pins—P52/SCL0, P97/SDA0, P86/SCL1, and P42/SDA1 —(normally NMOS push-
pull outputs) function as NMOS open-drain outputs when the bus drive function is selected.
• Automatic switching from formatless mode to I²C bus format (IIC_0 only)
 Formatless operation (no start/stop conditions, non-addressing mode) in slave mode
 Operation using a common data pin (SDA) and independent clock pins (VSYNCI, SCL)
 Automatic switching from formatless mode to I²C bus format on the fall of the SCL pin
Rev. 2.0, 08/02, page 394 of 788