User`s guide

Analog Outputs (DAC) LZ87010 Advance User’s Guide
14-2 1/15/03
Figure 14-1. DAC and Waveform Generator (One Channel Shown)
LZ87010-89
MUX
5
4
3
2
1
0
SEL
PRE
CLK
+
=0 N-1
N
EN
CLK WGINX(x)
TO INTERRUPT
CONTROLLER
WGCTL(x).IVL
DACC.PWEN(x)
WGCTL(x).CLK
IVL[2:0]
INTERRUPT
INTERVAL
000
001
010
011
100
101
110
111
INT DISABLED
1
2
4
8
16
32
64
CLOCK
SELECT
WGCTL(x).START
3
7
WGINX(x) CLK
WGCTL(x).WEN
WGMD(x)
WGMD(x)
ACCESS
7
7
7
7
TM5CMP1
TM4CMP0
TM3CMP1
TM2CMP0
WFGIN1
WFGIN0
DAVREF
DA(x)
INTERNAL TO
THE LZ87010
EXTERNAL TO
THE LZ87010
WGCTL(x).STEP
WAVEFORM
MEMORY
A
D
DAC
EN
VREF
DIGITAL IN
ANALOG OUT
+
STEP[2:0] STEP SIZE
000
001
010
011
100
101
110
111
0
1
2
4
8
16
32
RESERVED