ISP1109BS,118 NXP Semiconductors, ISP1109BS,118 Datasheet - Page 32

• Manufacturer Part Number: ISP1109BS,118
• Description: RF Transceiver USB FS TRANSCVR
• Manufacturer: NXP Semiconductors

Specifications of ISP1109BS,118

• Number Of Transceivers: 1
• Esd Protection: YeskV
• Power Supply Requirement: Triple
• Operating Supply Voltage (typ): Not RequiredV
• Operating Temperature Classification: Industrial
• Operating Supply Voltage (max): Not RequiredV
• Operating Supply Voltage (min): Not RequiredV
• Pin Count: 32
• Mounting: Surface Mount
• Operating Temperature (max): 85C
• Operating Temperature (min): -40C
• Operating Supply Voltage: 1.65 V to 5.25 V
• Lead Free Status / RoHS Status: Compliant
• Other names: 935276024118 ISP1109BS-T

Philips Semiconductors
9397 750 13355
Product data sheet
9.4.4 Read format
Table 42:
Figure 9
A read operation can be performed in two ways:
Byte
Register address K
ACK
Write data K
ACK
Write data K + 1
ACK
:
Write data K + N
ACK
P
Fig 9. Writing data to the ISP1109 registers.
•
•
S
S
Current address read: to read the register at the current address.
– Single-register read.
Random address read: to read N registers starting at a specified address. N defines
the number of registers to be read. If N = 1, only the start register is read.
– Single-register read
write data K + 2
device select
device select
illustrates the write format for a one-byte write and a multiple-byte write.
Transfer format description for a multiple-byte write
1
wr
wr
ACK
ACK
ACK
Description
master transmits address of register K. This is the start address for
writing multiple data bytes to consecutive registers. After a byte is written,
the register address is automatically incremented by 1.
Remark: If the master writes to a nonexistent register, the slave must
send a 'not ACK' and also must not increment the index address.
slave generates an acknowledgment
master writes data to register K
slave generates an acknowledgment
master writes data to register K + 1
slave generates an acknowledgment
:
master writes data to register K + N
K + N
it is possible that some registers may be overwritten, if the transfer is not
stopped before the rollover.
slave generates an acknowledgment
master generates a STOP condition
Rev. 01 — 14 July 2005
register address K
register address K
write data K + 3
1 becomes > 255, the register address rolls over to 0. Therefore,
one-byte write
multiple-byte write
ACK
ACK
ACK
.... maximum, rollover to 0
write data K
write data K
USB transceiver with carkit support
1. When the incremented address
© Koninklijke Philips Electronics N.V. 2005. All rights reserved.
…continued
ACK
ACK
ACK
P
write data K + N - 1
write data K + 1
ISP1109
004aaa569
ACK
ACK
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P