參數(shù)資料
型號(hào): 73S1210F-68MR/F/PG
廠商: Maxim Integrated
文件頁數(shù): 44/126頁
文件大小: 0K
描述: IC SOC SMART CARD READER 68QFN
標(biāo)準(zhǔn)包裝: 2,500
系列: *
73S1210F Data Sheet
DS_1210F_001
24
Rev. 1.4
MPU Clock Control Register (MPUCKCtl): 0xFFA1
0x0C
Table 13: The TCON Register
MSB
LSB
MDIV.5 MDIV.4 MDIV.3 MDIV.2 MDIV.1 MDIV.0
Bit
Symbol
Function
MPUCKCtl.7
MPUCKCtl.6
MPUCKCtl.5
MDIV.5
This value determines the ratio of the MPU master clock frequency to the
VCO frequency (MCLK) such that
MPUClk = MCLK/(2 * (MPUCKDiv(5:0) + 1)).
Do not use values of 0 or 1 for MPUCKDiv(n).
Default is 0Ch to set CPCLK = 3.6923MHz.
MPUCKCtl.4
MDIV.4
MPUCKCtl.3
MDIV.3
MPUCKCtl.2
MDIV.2
MPUCKCtl.1
MDIV.1
MPUCKCtl.0
MDIV.0
The oscillator circuits are designed to connect directly to standard parallel resonant crystal in a Pierce
oscillator configuration.
Each side of the crystal should include a 22pF capacitor to ground for both
oscillator circuits and a 1M
resistor is required across the 12MHz crystal.
73S1210F
X
12I
N
X
12O
U
T
12MHz
22pF
1M
Note: The crystal should be placed as close as possible to the IC, and vias should be avoided.
Figure 4: Oscillator Circuit
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