LTC1403A_15 Datasheet, PDF (16/20 Pages) Linear Technology – Serial 12-Bit/14-Bit, 2.8Msps Sampling ADCs with Shutdown

LTC1403/LTC1403A
APPLICATIONS INFORMATION
;
bsend
;
-------------------dummy bsend return------------------------
return_enable
;this is also a dummy return to define bsend
;in vector table file BVECTORS.ASM
----------------------- end ISR ----------------------------
.copy “c:\dskplus\1403\s2k14ini.asm” ;initialize buffered serial port
.space 16*32
;clear a chunk at the end to mark the end
;======================================================================
;
; VECTORS
;
;======================================================================
.sect “vectors”
;The vectors start here
.copy “c:\dskplus\1403\bvectors.asm” ;get BSP vectors
.sect “buffer”
.space 16*0x800
.sect “result”
.space 16*0x800
;Set address of BSP buffer for clearing
;Set address of result for clearing
.end
**********************************************************************
*
(C) COPYRIGHT TEXAS INSTRUMENTS, INC. 1996
*
**********************************************************************
*
*
* File: s2k14ini.ASM BSP initialization code for the ‘C54x DSKplus *
*
for use with 1403A in standard mode
*
*
BSPC and SPC are the same in the ‘C542
*
*
BSPCE and SPCE seem the same in the ‘C542
*
**********************************************************************
.title “Buffered Serial Port Initialization Routine”
ON
.set 1
OFF
.set !ON
YES
.set 1
NO
.set !YES
BIT_8 .set 2
BIT_10 .set 1
BIT_12 .set 3
BIT_16 .set 0
GO
.set 0x80
**********************************************************************
* This is an example of how to initialize the Buffered Serial Port (BSP).
* The BSP is initialized to require an external CLK and FSX for
* operation. The data format is 16-bits, burst mode, with autobuffering
* enabled.
*
*****************************************************************************************************
*LTC1403 timing from LCC28 socket board with 10MHz crystal.
*
*10MHz, divided from 40MHz, forced to CLKIN by 1403 board.
*
*Horizontal scale is 25ns/chr or 100ns period at BCLKR
*
*Timing measured at DSP pins. Jxx pin labels for jumper cable.
*
*BFSR Pin J1-20 ~~\____/~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~\____/~~~~~~~~~~~*
*BCLKR Pin J1-14 _/~\_/~\_/~\_/~\_/~\_/~\_/~\_/~\_/~\_/~\_/~\_/~\_/~\_/~\_/~\_/~\_/~\_/~\_/~\_/~\_/~*
*BDR Pin J1-26 _---_---_---<B13-B12-B11-B10-B09-B08-B07-B06-B05-B04-B03-B02-B01-B00>---_---<B13-B12*
*CLKIN Pin J5-09 ~~~~~\_______/~~~~~~~\_______/~~~~~~~\_______/~~~~~~~\_______/~~~~~~~\_______/~~~~~*
*C542 read
0 B13 B12 B11 B10 B09 B08 B07 B06 B05 B04 B03 B02 B01 B00 0 0 B13 B12*
*
*
16
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