30
8066
8066
MP N/B Maintenance
MP N/B Maintenance
1.3.11 Keyboard System: Winbond W83L950D
The Winbond Keyboard controller architecture consists of a Turbo 51 core controller surrounded by various
registers, nine general purpose I/O port, 2k+256 bytes of RAM, four timer/counters, dual serial ports, 40K MTP-
ROM that is divided into four banks, two SMBus interface for master and slave, Support 4 PWM channels, 2 D-A
and 8 A-D converters.
Features
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8051 uC based
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Keyboard Controller Embedded Controller
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Supply embedded programmable flash memory (internal ROM size: 40KB) and RAM size is 2 KB.
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Support 4 Timer (8 bit) signal with 3 prescalers.
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Support 2 PWM channels, 2 D-A and 8 A-D converters.
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Reduce Firmware burden by Hardware PS/2 decoding
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Support 72 useful GPIOs totally
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Support Flash utility for on board re-flash
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Support ACPI
MiTac Secret
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