EM78P569 View Datasheet(PDF) - ELAN Microelectronics
Part Name
Description
MFG CO.
'EM78P569' PDF : 58 Pages View PDF
VDD
EM78P569
8-bit OTP Micro-controller
MUX
2.5V
REF
VREF
2R
10-b it
R
D/ A
ref. 2R
volt.
R
2R
2R
DARES
buffer
DAST
DAOUT
o
P67
Fig.12 D/A converter (DAC)
IOCB (PORTB I/O control, ADC control)
PAGE0 (PORTB I/O control register)
7
6
5
4
3
2
1
0
IOCB7 IOCB6 IOCB5 IOCB4 IOCB3 IOCB2 IOCB1 IOCB0
R/W-1 R/W-1 R/W-1 R/W-1 R/W-1 R/W-1 R/W-1 R/W-1
Bit 0 ~ Bit 7 (IOCB0 ~ IOCB7) : PORTB(0~7) I/O direction control register
0 put the relative I/O pin as output
1 put the relative I/O pin into high impedance
PAGE1 (ADC control bits)
7
6
5
4
3
2
1
0
IN2
IN1
IN0 ADCLK1 ADCLK0 ADPWR X
ADST
R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0
-
R/W-0
Bit 0(ADST) : AD converter start to sample
By setting to “1”, the AD will start to sample data. This bit will be cleared by hardware automatically after a
sampling.
__________________________________________________________________________________________________________________________________________________________________
* This specification is subject to be changed without notice.
34
8/19/2004 V4.4
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