DMASCC_CFG - Online Linux Manual Page

Section : 1
Updated : 30 June 1999
Source : Linux
Note : Linux Programmer's Manual
NAMEdmascc_cfg − Configure dmascc devices
SYNOPSISdmascc <interface> [<options>]
DESCRIPTIONdmascc_cfg is used to configure dmascc devices such as PI2 and PackeTwin cards. The −−show option can be used by any user, all other options must be used by root.
OPTIONS−−speed frequency  Set frequency of baud rate generator to frequency. A value of 0 disables the baud rate generator and the digital PLL. Use the −−show option to check whether the frequency you selected could be approximated with sufficient accuracy. −−nrzi [0|1]  0 selects NRZ mode, 1 selects NRZI mode. −−clocks integer  Set the clock mode. You may OR together three choices (other values are not supported and may cause strange results). TX clock pin: 0x00 input
0x05 output TX clock *
0x06 output baud rate generator *
0x07 output digital PLL * TX clock source: 0x00 RX clock pin
0x08 TX clock pin #
0x10 baud rate generator
0x18 digital PLL +
RX clock source: 0x00 RX clock pin
0x20 TX clock pin
0x40 baud rate generator
0x60 digital PLL +
* Not allowed on PI2 Port A if J3 is installed. # TX clock pin must be configured as input. + Speed must be equal to 32 times the baud rate. −−txdelay milliseconds  Set transmit delay to milliseconds. Maximum is 2500 ms. −−txtime seconds  Set maximum time the transmitter may be active to seconds. −−sqdelay milliseconds  Set the squelch delay to milliseconds. Maximum delay is 2500 ms. −−slottime milliseconds  Set the slot time to milliseconds. Maximum slottime is 2500 ms. −−waittime milliseconds  Set the minimum time between the transmitter turning off to when it turns on to milliseconds. Maximum wait time is 2500 ms. −−persist f  Set the persistance parameter to f. Must be between 0 and 255 (inclusive). −−dma channel  Set the DMA channel to channel. Can be 1 or 3. Setting to 0 disables DMA.
BUGSdmascc_cfg does not check the parameters for validity. The driver or kernel may crash if you specify invalid values.
AUTHORSKlaus Kudielka
This manual page written by Craig Small <csmall@small.dropbear.id.au> 0
Johanes Gumabo
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