ATA3742_07 ATMEL [ATMEL Corporation], ATA3742_07 Datasheet - Page 24

• Manufacturer Part Number: ATA3742_07
• Description: UHF ASK/FSK Receiver
• Manufacturer: ATMEL [ATMEL Corporation]

Figure 5-13. Generation of the Power-on Reset
Figure 5-14. Timing of the Register Programming
5.4.2
24
Serial bi-directional
(microcontroller)
DATA (ATA3742)
data line
ATA3742
Programming the Configuration Register
DATA (ATA3742)
Out1
POR
V
Receiving
S
mode
X
X
The configuration registers are programmed serially via the bi-directional data line according to
Figure 5-14
Figure 5-15. One-wire Connection to a Microcontroller
X
t
1
and
t
Rst
t
2
(ATA3742)
Figure
DATA
Internal pull-up
t
3
(Start bit)
ATA3742
resistor
Bit 1
("0")
t
5-15.
4
t
t
t
5
6
7
V
Threset
(Register
select)
Programming frame
Bit 2
("1")
DATA
Bi-directional
data line
I/O
(Poll 8)
Bit 13
("0")
1/f
Microcontroller
RM
Out1 (microcontroller)
(Poll 8R)
Bit 14
("1")
t
8
t
9
T
Sleep
4900B–RKE–11/07
Startup
mode