参数资料
型号: AT85C51SND3B1-7FTUL
厂商: Atmel
文件页数: 47/119页
文件大小: 0K
描述: IC DECODER/ENCODER DGTL 100CBGA
标准包装: 90
类型: 音频编码器/解码器
应用: 移动电话,手机,视频显示器
电压 - 电源,数字: 1.65 V ~ 3.6 V
安装类型: 表面贴装
封装/外壳: 100-TFBGA
供应商设备封装: 100-CTBGA(9x9)
包装: 托盘
33
AT85C51SND3B
7632D–MP3–01/07
Table 28. MMC Clock Selection
Table 29. MMC Clock Divider
SIO Clock Generator
As detailed in Figure 23, the SIO clock which feeds the internal SIO baud rate generator
can be programmed using SIOCKS bit in CKSEL register according to Table 30 to gen-
erate either the oscillator frequency or a very high frequency allowing very high baud
rate when PLL is enabled. SIO clock is enabled by SIOCKEN bit in CKEN register.
Figure 23. SIO Clock Generator Block Diagram and Symbol
Table 30. SIO Clock Selection
MMCCKS2:0
Clock Selection (F
S)
000
FOSC (default)
001
60 MHz
010
48 MHz
011
30 MHz
100
24 MHz
101
20 MHz
110
16 MHz
111
F
OSC ÷ 2
MMCDIV4:0
Clock Division
00000
Disabled (no clock out)
00001
F
MMC = FS ÷ MMCDIV
SIOCKS
Clock Selection (F
S)
0
F
OSC
1
120 MHz
CLOCK
GEN
120 MHz
SIO
CLOCK
SIO Clock Symbol
SIOCKEN
CKEN.1
SIO Clock
OSC
0
1
SIOCKS
CKSEL.2
FS
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