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ELANSC310 数据表(PDF) 62 Page - Advanced Micro Devices

部件名 ELANSC310
功能描述  Single-Chip, 32-Bit, PC/AT Microcontroller
PDF  119 Pages
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制造商  AMD [Advanced Micro Devices]
网页  http://www.amd.com
标志 AMD - Advanced Micro Devices

ELANSC310 数据表(HTML) 62 Page - Advanced Micro Devices

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Élan™SC310 Microcontroller Data Sheet
PREL IMINARY
PC/XT Keyboard
The PC/XT keyboard functionality is enabled via bit 3 of PMU Control 3 Register, Index ADh.
14-MHz Clock Source
Setting bit 3 of Miscellaneous 3 Register, Index BAh, enables the 14.336 MHz clock signal on the parallel port pin
AFDT.
Table 32.
14-MHz Clock Source
Table 31.
XT Keyboard Pin Description
PC/XT Keyboard Pin
Name
Pin Type
PC/XT Keyboard Pin
Description/Notes
Default Pin
Name/Function
Pin No.
[XTDAT]
I/O
Keyboard data
8042CS
75
[XTCLK]
I/O
Keyboard clock
SYSCLK
45
14-MHz
Pin Name
Pin Type
14-MHz Clock Pin
Description/Notes
Default Pin
Name/Function
Pin No.
[X14OUT]
O
14.336-MHz Clock
AFDT
80



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