PEB2256H-V12 Infineon Technologies, PEB2256H-V12 Datasheet - Page 401
![no-image](/images/manufacturer_photos/0/3/327/infineon_technologies_sml.jpg)
PEB2256H-V12
Manufacturer Part Number
PEB2256H-V12
Description
IC INTERFACE LINE 3.3V 80-MQFP
Manufacturer
Infineon Technologies
Datasheet
1.PEB2256H-V12.pdf
(490 pages)
Specifications of PEB2256H-V12
Applications
*
Interface
*
Voltage - Supply
*
Package / Case
80-SQFP
Mounting Type
Surface Mount
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Other names
PEB2256H-V12
PEB2256H-V12IN
PEB2256H-V12IN
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
PEB2256H-V12
Manufacturer:
Infineon Technologies
Quantity:
10 000
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- Download datasheet (6Mb)
Flexible Clock Mode Settings
If flexible master clock mode is used (VFREQ_EN = 1), the according register settings
can be calculated as follows (a windows-based program for automatic calculation is
available, see
the table below.
1. PLL_M and PLL_N must fulfill the equations:
a. 1.5 MHz
b. If (a.) is not possible, set MCLK_LOW and fulfill
1.02 MHz
c. 65 MHz
(as high as possible within this range)
2. Selection of dividing mode to best fulfill:
f
f
Though the target frequency might not be met directly, the dividing mode has to be
selected to reach a frequency, which is as near as possible to the target frequency.
3. Calculation of correction value (frequency mismatch correction)
PHD_E1 = 6
PHD_T1 = 6
The result of these equations will be in the range of -2048 to +2047. Negative values are
represented in 2s-complement format (e.g. -2000
Table 66
Data Sheet
outE1
outT1
f
MCLK
10.000
12.352
1.544
2.048
8.192
= ( f
= ( f
[MHz]
MCLK
MCLK
f
f
MCLK
f
MCLK
MCLK
Clock Mode Register Settings for E1 or T1/J1
Chapter 13.3
4096
4096
(2 PLL_N+2) / (PLL_M+1) ) / DIV_E1 (target E1: 16.384 MHz)
(2 PLL_N+2) / (PLL_M+1) ) / DIV_T1 (target T1: 12.352 MHz)
/ (PLL_M+1)
GCM1
/ (PLL_M+1)
F0
F0
00
00
90
(2 PLL_N+2) / (PLL_M+1)
H
H
H
[DIV_T1 - (2 PLL_N+2)/(PLL_M+1)
H
H
[DIV_E1 - (2 PLL_N+2)/(PLL_M+1)
on
GCM2
51
58
58
51
51
page
1.5 MHz
2.048 MHz
H
H
H
H
H
481). For some of the standard frequencies see
401
GCM3
D2
D2
00
81
00
H
H
H
H
H
D
69.7 MHz
= 830
GCM4
C2
C2
80
8F
80
H
; +2000
H
H
H
H
H
(f
(f
MCLK
MCLK
D
GCM5
/12.352 MHz)]
/16.384 MHz)]
= 7D0
00
00
03
04
07
H
H
H
H
H
T1/J1 Registers
FALC56 V1.2
H
).
PEB 2256
2002-08-27
GCM6
15
10
10
10
15
H
H
H
H
H
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