参数资料
型号: SAF-TC11IB-64D96EBC
厂商: INFINEON TECHNOLOGIES AG
元件分类: 微控制器/微处理器
英文描述: 32-BIT, 96 MHz, RISC MICROCONTROLLER, PBGA388
封装: PLASTIC, BGA-388
文件页数: 74/110页
文件大小: 1303K
代理商: SAF-TC11IB-64D96EBC
TC11IB
Data Sheet
62
V2.4, 2004-06
Clock Generation Unit
The Clock Generation Unit in the TC11IB, shown in Figure 17, consists of an oscillator
circuit and one Phase-Locked Loop (PLL). The PLL can convert a low-frequency
external clock signal to a high-speed internal clock for maximum performance. The PLL
also has fail-safe logic that detects degenerate external clock behavior such as abnormal
frequency deviations or a total loss of the external clock. It can execute emergency
actions if it losses the lock on the external clock. PLL can provide the 96MHz and 48MHz
clocks.
In general, the Clock Generation Unit (CGU) is controlled through the System Control
Unit (SCU) module of the TC11IB.
Figure 17
Clock Generation Unit Block Diagram
1
>
M C A 0494 0
O s c illator
Circ u it
XTA L 1
XTA L 2
f
OS C
P has e
De te c t.
VC O
N
Div id e r
PLL
f
VCO
1
0
K:1
D iv ider
f
SYS =
96 M H z
S yste m _
CL K
Loc k
De te c to r
OS C _ F A IL
P L L
L o cke d
De e p
S leep
NDIV
[5 :0 ]
VC O _
BYP ASS
KD IV
[3 :0 ]
P LL_
BYP ASS
System C ontrol U nit
SC U
R e gis ter P LL_C LC
MU X
1
0
MU X
K:2
D iv ider
VC O _
SE L
[1 :0 ]
f
SYS =
48 M H z
S yste m _
CL K
1
0
MU X
P LL_
2E N
P LL_
2S E L
C lock G eneration U nit
CGU
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