參數(shù)資料
型號: ELANSC300-25KI
廠商: ADVANCED MICRO DEVICES INC
元件分類: 微控制器/微處理器
英文描述: Highly Integrated, Low-Power, 32-Bit Microcontroller
中文描述: 32-BIT, 25 MHz, MICROCONTROLLER, PQFP208
封裝: SHRINK, PLASTIC, QFP-208
文件頁數(shù): 72/139頁
文件大?。?/td> 1388K
代理商: ELANSC300-25KI
72
élanSC300 Microcontroller Data Sheet
P R E L I M I N A R Y
X1OUT [BAUD_OUT] Clock Source
The internal clock source driving out on this pin is configured via register bits of the Function Enable Registers,
Indexes B0h and B1h.
Notes:
The default function of this pin is that no clock is driven out and the pin is tri-stated.
PC/XT Keyboard
The PC/XT keyboard functionality is enabled via bit 3 of PMU Control 3 Register, Index ADh.
PCMCIA Data Path Control
Setting bit 4 of Miscellaneous 3 Register, Index BAh, enables the PCMCIA memory commands on the Parallel port
pins SLCTIN and INIT.
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 33.
X1OUT Clock Source Pin Description
BAUDOUT Pin Name
Pin Type
X1OUT [BAUD_OUT] Pin
Description/Notes
Serial baud rate clock
Default Pin
Name/Function
X1OUT
Pin No.
[BAUD_OUT]
O
200
Table 34.
XT Keyboard Pin Description
PC/XT Keyboard Pin Name
Pin Type
PC/XT Keyboard Pin
Description/Notes
Keyboard data
Keyboard clock
Default Pin
Name/Function
8042CS
SYSCLK
Pin No.
[XTDAT]
[XTCLK]
I/O
75
I/O
45
Table 35.
PCMCIA Data Path Control
PCMCIA Control
Pin Name
[PCMCOE]
[PCMCWE]
Pin Type
Data Path Control Pin
Description/Notes
Default Pin Name/
Function
SLCTIN
INIT
Pin No.
O
PCMCIA Output Enable
PCMCIA Write Enable
84
O
89
Table 36.
14-MHz Clock Source
14-MHz
Pin Name
[X14OUT]
Pin Type
14-MHz Clock Pin
Description/Notes
Default Pin Name/
Function
AFDT
Pin No.
O
14.336 MHz Clock
80
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