AD8600APZ Analog Devices Inc, AD8600APZ Datasheet - Page 12

• Manufacturer Part Number: AD8600APZ
• Description: 16 CHANNEL 8-BIT MULT.DAC
• Manufacturer: Analog Devices Inc

Specifications of AD8600APZ

• Rohs Compliant: YES
• Settling Time: 1µs
• Number Of Bits: 8
• Data Interface: Parallel
• Number Of Converters: 16
• Voltage Supply Source: Analog and Digital, Dual ±
• Power Dissipation (max): 175mW
• Operating Temperature: -40°C ~ 85°C
• Mounting Type: Surface Mount
• Package / Case: 44-PLCC
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

AD8600
* This program contains subroutines to read and write
* to the AD8600 from the 68HC11.
* program has been included, to continuously ramp the
* output giving a triangle wave output.
*
* The following connections need to be made:
*
*
*
*
*
*
*
*
*
portc
portb
ddrc
*
read
*
*
*
*
*
*
*
write
*
*
*
*
*
*
ramp
68HC11
GND
PB4
PB5
PB6
PB7
PC0-PC7
PB0-PB3
equ
equ
equ
org
lds
ldaa
staa
ldx
ldaa
adda
staa
inx
ldaa
staa
ldy
bset
jmp
lds
ldaa
staa
ldx
ldaa
adda
staa
inx
ldaa
staa
ldy
bclr
bset
jmp
lds
ldaa
$1003
$1004
$1007
$C000
#$CFFF
#$00
ddrc
#$00
0,x
#$70
portb
portc
0,x
#$1000
portb,y $f0
$e000
#$cfff
#$ff
ddrc
#$00
0,x
#$30
portb
0,x
portc
#$1000
portb,y $30
portb,y $b0
$e000
#$cfff
#$ff
AD8600
DGND1,2
DB0–DB7 respectively, data port
A0–A3 respectively, address port
LD
EN
R/W
CS
define port addresses
subroutine to read from AD8600
initialize port c to 00000000
configures PC0-PC7 as inputs.
points to DAC address in 68HC11 memory
put the address in the accumulator
add the control bits to the address
R/W, LD, EN are high,
output control and address on port b.
points to memory location to store the data
read data from DAC
Store this data in memory at address “x”
Return to BUFFALO
routine to write to AD8600
initialize port c to 11111111
configures PC0-PC7 as outputs.
points to DAC address in 68HC11 mem
puts the address in the accumulator
set CS, R/W low and LD, EN high
output to portb for control and address
points to memory location to store the data
load the data into the accumulator
write the data to the DAC
Return to BUFFALO
routine to generate a triangle wave
configure port c as outputs
Set LD, EN low to latch data
Bring LD, EN, CS high, write is complete
Set CS, LD, EN high
Additionally, a ramp
–12–
CS is low.
REV. 0