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參數(shù)資料
| 型號(hào)： | MAX192BEWP+T |
| 廠商： | Maxim Integrated Products |
| 文件頁數(shù)： | 14/24頁 |
| 文件大?。?/td> | 0K |
| 描述： | IC ADC 10BIT SERIAL 20-SOIC |
| 產(chǎn)品培訓(xùn)模塊： | Lead (SnPb) Finish for COTS Obsolescence Mitigation Program |
| 標(biāo)準(zhǔn)包裝： | 1,000 |
| 類型： | 數(shù)據(jù)采集系統(tǒng)（DAS），ADC |
| 分辨率（位）： | 10 b |
| 采樣率（每秒）： | 133k |
| 數(shù)據(jù)接口： | MICROWIRE?，QSPI?，串行，SPI? |
| 電壓電源： | 單電源 |
| 電源電壓： | ±5V |
| 工作溫度： | -40°C ~ 85°C |
| 安裝類型： | 表面貼裝 |
| 封裝/外殼： | 20-SOIC（0.295"，7.50mm 寬） |
| 供應(yīng)商設(shè)備封裝： | 20-SOIC W |
| 包裝： | 帶卷 (TR) |
MAX192
Low-Power, 8-Channel,
Serial 10-Bit ADC
______________________________________________________________________________________
21
* Description :
*
This is a shell program for using a stand-alone 68HC16 without any external memory. The internal 1K RAM
*
is put into bank $0F to maintain 68HC11 code compatibility. This program was written with software
*
provided in the Motorola 68HC16 Evaluation Kit.
*
* Roger J.A. Chen, Applications Engineer
* MAXIM Integrated Products
* November 20, 1992
*
******************************************************************************************************************************************************
INCLUDE
‘EQUATES.ASM’ ;Equates for common reg addrs
INCLUDE
‘ORG00000.ASM’ ;initialize reset vector
INCLUDE
‘ORG00008.ASM’ ;initialize interrupt vectors
ORG
$0200
;start program after interrupt vectors
INCLUDE ‘INITSYS.ASM’
;set EK=F,XK=0,YK=0,ZK=0
;set sys clock at 16.78 MHz, COP off
INCLUDE ‘INITRAM.ASM’
;turn on internal SRAM at $10000
;set stack (SK=1, SP=03FE)
MAIN:
JSR
INITQSPI
MAINLOOP:
JSR
READ192
WAIT:
LDAA
SPSR
ANDA
#$80
BEQ
WAIT
;wait for QSPI to finish
BRA MAINLOOP
ENDPROGRAM:
INITQSPI:
;This routine sets up the QSPI microsequencer to operate on its own.
;The sequencer will read all eight channels of a MAX192 each time
;it is triggered. The A/D converter results will be left in the
;receive data RAM. Each 16 bit receive data RAM location will
;have a leading zero, 10 + 2 bits of conversion result and three zeros.
;
;Receive RAM Bits 15 14 13 12 11 10 09 08 07 06 05 04 03 02 01 00
;A/D Result
0 MSB
LSB 0 0 0
***** Initialize the QSPI Registers ******
PSHA
PSHB
LDAA
#%01111000
STAA
QPDR
;idle state for PCS0-3 = high
LDAA
#%01111011
STAA
QPAR
;assign port D to be QSPI
LDAA
#%01111110
STAA
QDDR
;only MISO is an input
LDD
#$8008
STD
SPCR0
;master mode,16 bits/transfer,
;CPOL=CPHA=0,1MHz Ser Clock
LDD
#$0000
STD
SPCR1
;set delay between PCS0 and SCK,
;set delay between transfers
Figure 20. MAX192 Assembly-Code Listing
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