DS2408 Maxim, DS2408 Datasheet - Page 11

• Manufacturer Part Number: DS2408
• Description: The DS2408 is an 8-channel, programmable I/O 1-Wire® chip
• Manufacturer: Maxim

Conditional Search Channel Polarity Selection Register
The data in this register specifies the polarity of each selected PIO channel for the device to respond to
the conditional search command. Within a PIO channel, the data source may be either the channel's input
signal (pin) or the channel's activity latch, as specified by the PLS bit in the Control/Status register at ad-
dress 008Dh. This register can only be written through the Write Conditional Search Registers command.
Conditional Search Channel Polarity Selection Register Bitmap
This register is read/write. Each bit is associated with the respective PIO channel as shown in Figure 7.
This register is cleared to 00h by a power-on reset.
Figure 7. Conditional Search Logic
AL0
P0
AL7
P7
008Ch
ADDR
PLS
SP7
b7
CHANNEL 7
CHANNEL 0
SP6
b6
SP5
b5
SP0
SP7
SP4
b4
CHANNELS 1 TO 6
(NOT SHOWN)
INPUT FROM
SP3
b3
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SM0
SM7
SP2
b2
SP1
b1
SP0
b0
CT
DS2408
CSR