peb20534h-52 Infineon Technologies Corporation, peb20534h-52 Datasheet - Page 256
peb20534h-52
Manufacturer Part Number
peb20534h-52
Description
Dma Supported Serial Communication Controller With 4 Channels
Manufacturer
Infineon Technologies Corporation
Datasheet
1.PEB20534H-52.pdf
(439 pages)
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
peb20534h-52V2.0
Manufacturer:
SIEMENS
Quantity:
5 510
Company:
Part Number:
peb20534h-52V2.0
Manufacturer:
SIEMENS
Quantity:
5 510
- Current page: 256 of 439
- Download datasheet (4Mb)
Data Sheet
TFRTHRESi
(i = 0...3)
Mx_i
(i = 0...3)
Transmit FIFO Refill Threshold Channel i
These bit fields determine the channel specific Transmit FIFO Refill
Threshold for the corresponding channel i in number of DWORDs
multiplied by its respective multiplier Mx_i.
This threshold controls DMAC operation towards the Host memory.
A watermark is calculated by:
watermark = TFRTHRESH*Mx_i+1.
As soon as the number of valid data in the transmit FIFO is less than
watermark the DMA controller requests for new data from shared
memory.
After initialization the DMAC fills the complete transmit FIFO; when the
number of data in the transmit FIFO decreases below the watermark the
transmit FIFO requests for refill. The number of data to be transferred
into the transmit FIFO is calculated by:
number=TFSIZEi-watermark.
The transmit FIFO cannot be filled when the DMA channel is in internal
HOLD state, i.e. ’HOLD’ bit has been detected (GMODE.CMODE=’0’)
or Last Descriptor Address matches the current descriptor address
FTDA = LTDA (GMODE.CMODE=’1’).
Note: (1) The watermark has to be equal or lower than the specified size
Multiplier 2 or 4
These bits enable a multiplier 2 or 4 respectively for the corresponding
’TFRTHRESi’ value:
M2_i = ’0’
M2_i = ’1’
M4_i = ’0’
M4_i = ’1’
Note: It is recommended not to set both multiplier enable bits of one
of the corresponding central transmit FIFO partition.
(2) The refill watermark must be at least 2 DWORDs higher than
the forward watermark (refer also to register FIFOCR4).
(3) The minimum allowed TFRTHRESHi value for used channels
is “1”.
channel to ’1’.
The multiplier ’by 2’ is disabled
The ’TFRTHRESi’ bit field value is multiplied by 2.
The multiplier ’by 4’ is disabled
The ’TFRTHRESi’ bit field value is multiplied by 4.
256
Detailed Register Description
(TX Channel i)
(TX Channel i)
PEB 20534
PEF 20534
2000-05-30
Related parts for peb20534h-52
Image
Part Number
Description
Manufacturer
Datasheet
Request
R
Part Number:
Description:
Dma Supported Serial Communication Controller With 4 Channels
Manufacturer:
Infineon Technologies Corporation
Datasheet:
Part Number:
Description:
Antenna Switch Silicon Pin Diode
Manufacturer:
Infineon Technologies Corporation
Datasheet:
Part Number:
Description:
Silicon Switching Diodes
Manufacturer:
Infineon Technologies Corporation
Datasheet:
Part Number:
Description:
Single Igbt Driver Ic
Manufacturer:
Infineon Technologies Corporation
Datasheet:
Part Number:
Description:
Igbt Modules
Manufacturer:
Infineon Technologies Corporation
Datasheet:
Part Number:
Description:
Igbt Modules
Manufacturer:
Infineon Technologies Corporation
Datasheet:
Part Number:
Description:
Igbt Modules
Manufacturer:
Infineon Technologies Corporation
Datasheet:
Part Number:
Description:
5 Volt Standard Regulator
Manufacturer:
Infineon Technologies Corporation
Datasheet:
Part Number:
Description:
Active Biased Transistor
Manufacturer:
Infineon Technologies Corporation
Datasheet:
Part Number:
Description:
N-channel Small Signal Mosfet 20v?800v
Manufacturer:
Infineon Technologies Corporation
Datasheet:
Part Number:
Description:
Sipmos Small-signal Transistor
Manufacturer:
Infineon Technologies Corporation
Datasheet:
Part Number:
Description:
Complementary Mosfets 60v Small-signal-transistor
Manufacturer:
Infineon Technologies Corporation
Datasheet:
Part Number:
Description:
Complementary Mosfets 60v
Manufacturer:
Infineon Technologies Corporation
Datasheet:
Part Number:
Description:
P-channel Mosfets Power-transistor
Manufacturer:
Infineon Technologies Corporation
Datasheet:
Part Number:
Description:
N-channel Mosfet 20v?300v Power Transistor Power Mosfet
Manufacturer:
Infineon Technologies Corporation
Datasheet: