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| 型号： | TC9446FG |
| 元件分类： | 消费家电 |
| 英文描述： | SPECIALTY CONSUMER CIRCUIT, PQFP100 |
| 封装： | 14 X 20 MM, 0.65 MM PITCH, PLASTIC, QFP-100 |
| 文件页数： | 18/41页 |
| 文件大小： | 562K |
| 代理商： | TC9446FG |
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TC9446FG
2005-09-28
25
DLL oscillation clock can be chosen with DLCKS terminal and DLON terminal, as shown in Table 5.
Table 5
Setup of DLL Circuit
DLCKS Terminal (93 pin)
DLON Terminal (92 pin)
DLL Oscillation Clock
“L”
SCKI input (DLL
= off)
“L”
“H”
XI input * 4
th times
“H”
“L”
XI input * 3
rd times
“H”
XI input * 6
th times
When DLCKS terminal and DLON terminal are “L”, the external clock input from SCKI terminal is
chosen.
An internal clock of operation is a half divided clock of the DLL clock, and processing speed can
correspond a maximum of 75 MIPS. The clock outputted from DLL circuit should choose a crystal
oscillation clock to be set to less than 150 MHz. The example of DLL clock by the crystal oscillation clock is
shown in Table 6.
Table 6
Crystal Oscillation Clock and DLL Clock
Crystal Oscillation Clock
6
th Times Clock
4
th Times Clock
3
rd Times Clock
12.288 MHz
(48 kHz*256)
73.728 MHz
(36 MIPS operation)
49.152 MHz
(24 MIPS operation)
38.864 MHz
(18 MIPS operation)
18.432 MHz
(48 kHz*384)
110.592 MHz
(55 MIPS operation)
73.728 MHz
(36 MIPS operation)
55.296 MHz
(27 MIPS operation)
24.576 MHz
(48 kHz*512)
147.456 MHz
(73 MIPS operation)
98.304 MHz
(49 MIPS operation)
73.728 MHz
(36 MIPS operation)
25.00 MHz
(asynchronous)
to 150 MHz
(75 MIPS operation)
100.00 MHz
(50 MIPS operation)
75.00 MHz
(37 MIPS operation)
27.00 MHz
(asynchronous)
Not available
108.00 MHz
(54 MIPS operation)
81.00 MHz
(40 MIPS operation)
30.0 MHz
(asynchronous)
Not available
to 120 MHz
(60 MIPS operation)
90.00 MHz
(45 MIPS operation)
36.864 MHz
(48 kHz*768)
Not available
110.592 MHz
(55 MIPS operation)
Note 8: Crystal oscillation clock is as asynchronous as the system clocks (AD converter, DA converter, etc.) of
external LSI. A case needs to input the clock oscillated externally into CKI terminal, and needs to
synchronize with them.
7.
Flag Input (FI0-FI3 terminal)
It is used when inputting a flag from a MCU. However, a function changes with built-in programs. FI0 to
FI3 terminal should fix each terminal to “H”, or since pull-up resistance is built in, when not being
specified by the program, please it be open and be used for it.
8.
Interruption Input (IRQ terminal)
It is used when interrupting and inputting from a MCU. However, operation changes with built-in
programs. IRQ terminal should fix a terminal to “L”, or since pull down resistance is built in, when not
being specified by the program, please it be open and be used for it.
9.
General-Purpose Output Terminal (PO0-PO7 terminal)
It can be used when carrying out logic control of the case where it is used as an interruption output to the
flag and the MCU for detection of internal operation, or the external LSI. However, the function and
operation of a terminal change with built-in programs. Since PO0-PO7 terminal contains pull-up resistance,
when not being specified by the program, please carry out and use each output terminal for opening.
At the time of a power-supply injection, the output of a general-purpose output terminal becomes unfixed.
“L” level will be outputted if it initializes with a reset terminal.
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