PEF 24470 H V1.3 Infineon Technologies, PEF 24470 H V1.3 Datasheet - Page 91

• Manufacturer Part Number: PEF 24470 H V1.3
• Description: IC MTSI-XL SWITCHING MQFP100
• Manufacturer: Infineon Technologies
• Series: SWITIr

Specifications of PEF 24470 H V1.3

• Function: Switching IC
• Interface: PCM, PLL
• Number Of Circuits: 1
• Voltage - Supply: 3.13 V ~ 3.47 V
• Current - Supply: 200mA
• Operating Temperature: -40°C ~ 85°C
• Mounting Type: Surface Mount
• Package / Case: 100-SQFP
• Includes: Clock Shift, Data Rate Adaption, Multipoint Switching
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Power (watts): -
• Other names: PEF24470HV1.3X; SP000007617

PRELIMINARY
6.5
After the reset process the PLL, local bus (PCM) interface, and some other signals need
to be initialized.
Since the SWITI offers the possibility to use two different external crystal/oscillator
frequencies the command ’Set external frequency’ must be used first to set the correct
frequency and to set the correct value of the input frequency for the APLL. After
approximately 750µs the APLL is locked and the APLL status bit is set and the next
commands can be written.
Figure 18
After this initialization procedure the different functional blocks of the SWITI can be
programmed.
– Local Bus (PCM) Interface
– Interrupt’s and IREQ Pin
– GPCLK’s and Frame Signals
– General Purpose Interface
Preliminary Data Sheet
Initialization Procedure
Initialization Procedure after Reset
W rite 4 1
W rite 5 1
In te rn a l F re q u e n c y = e x t. F re q u e n c y
H
H
In t. F re q u e n c y = 4 9 .1 5 2 M H z
to C M D 2 (if e x t. F re q . = 3 2 .7 6 8 M H z )
to C M D 2 (if e x t. F re q . = 1 6 .3 8 4 M H z )
R e a d In te rru p t S ta tu s
R e s e t (H a rd w a re )
IS T A 1 :A P L L = 1 ?
A P L L is lo c k e d
R e g is te r 1
~ 7 5 0 µ s
W A IT
82
Y
PEF 20450 / 20470 / 24470
Programming the Device
N
s w iti_ 0 7 3 .e m f
2001-11-20