FUJITSU Semiconductor Controller MB89950/950A - Manual (Page 17)

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CHAPTER 1 OVERVIEW
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External interrupts (2 channels)
• Two channels are independent and capable of wake-up from low-power consumption mode (with an
edge detection function).
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Standby mode (low-power mode)
• Stop mode (oscillation stops so as to minimize the current consumption).
• Sleep mode (CPU stops so as to reduce the current consumption to approx. 1/3 of normal).
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I/O ports: max. 33 channels
• General-purpose I/O ports (N-ch open-drain): 22 (Also serve as segment pins)
• General-purpose I/O ports (N-ch open-drain): 4 (2 also serve as LCD bias pins)
• General-purpose I/O ports (CMOS): 7 (6 also serve as peripheral pins)