DS2408S+ Maxim Integrated Products, DS2408S+ Datasheet - Page 10

• Manufacturer Part Number: DS2408S+
• Description: PROM 1-Wire 8-Ch Addressable Switch
• Manufacturer: Maxim Integrated Products

Specifications of DS2408S+

• Lead Free Status / Rohs Status: Details

Conditional Search Channel Selection Mask Register
The data in this register controls whether a PIO channel qualifies for participation in the conditional
search command. To include one or more of the PIO channels, the bits in this register that correspond to
those channels need to be set to 1. This register can only be written through the Write Conditional Search
Registers command.
Conditional Search Channel Selection Mask 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
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
008Bh
008Ch
ADDR
ADDR
PLS
SM7
SP7
b7
b7
CHANNEL 7
CHANNEL 0
SM6
SP6
b6
b6
SM5
SP5
b5
b5
SP0
SP7
SM4
SP4
b4
b4
CHANNELS 1 TO 6
(NOT SHOWN)
INPUT FROM
SM3
SP3
b3
b3
10 of 36
SM0
SM7
SM2
SP2
b2
b2
SM1
SP1
b1
b1
SM0
SP0
b0
b0
CT
CSR