參數(shù)資料
型號: ELANSC400-66AI
廠商: ADVANCED MICRO DEVICES INC
元件分類: 微控制器/微處理器
英文描述: Single-Chip, Low-Power, PC/AT-Compatible Microcontrollers
中文描述: 32-BIT, FLASH, 66 MHz, MICROCONTROLLER, PBGA292
封裝: PLASTIC, BGA-292
文件頁數(shù): 77/132頁
文件大小: 2400K
代理商: ELANSC400-66AI
élanSC400 and élanSC410 Microcontrollers Data Sheet
77
Integrated Peripheral Clock Sources
Table 26 and Figure 5 show the primary peripheral
clocks internal to the microcontroller and the PLL and
divider sources that are used in the generation of these
clocks. Note that several of the peripheral clocks are
programmable. This programmability is either directly
controlled by system firmware or is forced due to a
power-management mode change. The graphics con-
troller and the PC Card controller are not supported on
the élanSC410 microcontroller.
Table 26.
Integrated Peripheral Clock Sources
Source PLL
Intermediate PLL
1.4746 MHz
Low-speed PLL
36.864 MHz
Divider
1
Resulting Frequency
1.4746 MHz
Where Used
Low-speed PLL input
1
36.864 MHz
High-speed PLL input
Graphics dot clock PLL input
UART
UART
PIT
Graphics controller dot clock
Graphics controller
DRAM controller
Graphics controller
CPU
VL-bus controller
CPU
VL-bus controller
DMA controller
CPU
VL-bus controller
ISA bus controller
ROM/Flash memory interface
DMA controller
PC Card controller
CPU
VL-bus controller
ISA bus controller
ROM/Flash memory interface
DMA controller
PC Card controller
CPU
VL-bus controller
ISA bus controller
ROM/Flash memory interface
DMA controller
PC Card controller
CPU
VL-bus controller
ISA bus controller
ROM/Flash memory interface
DMA controller
PC Card controller
20
2
31
1.8432 MHz
18.4328 MHz
1.1892 MHz
20.736–36.864 MHz
36.864 MHz
66.3552 MHz
Graphics dot clock PLL
36.864 MHz
Programmable
1
1
High-speed PLL
66.3552 MHz
2
33.1776 MHz
4
16.5888 MHz
8
8.2944 MHz
16
4.1472 MHz
32
2.0736 MHz
64
1.0368 MHz
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