參數(shù)資料
型號: ISP1109BS
廠商: NXP SEMICONDUCTORS
元件分類: 通用總線功能
英文描述: Universal Serial Bus transceiver with carkit support
中文描述: LINE TRANSCEIVER, PQCC32
封裝: LEAD FREE, 5 X 5 MM, 0.85 MM HEIGHT, PLASTIC, MO-220, SOT617-1, HVQFN-32
文件頁數(shù): 30/59頁
文件大?。?/td> 295K
代理商: ISP1109BS
9397 750 13355
Koninklijke Philips Electronics N.V. 2005. All rights reserved.
Product data sheet
Rev. 01 — 14 July 2005
30 of 59
Philips Semiconductors
ISP1109
USB transceiver with carkit support
9.4.2
I
2
C-bus device address
[1]
Determined by logic level on pin I2C_ADR: LOW = 0, HIGH = 1.
9.4.3
Write format
A write operation can be performed as:
One-byte write to the specified register address
Multiple-byte write to N consecutive registers, starting from the specified start
address. N defines the number of registers to write to. If N = 1, only the start register
is written.
9.4.3.1
One-byte write
Table 41
describes the transfer format for a one-byte write.
9.4.3.2
Multiple-byte write
Table 42
describes the transfer format for a multiple-byte write.
Table 39:
Bit
Symbol
Value
I
2
C-bus slave address bit allocation
7
A6
0
6
5
4
3
2
1
0
A5
1
A4
0
A3
1
A2
1
A1
0
A0
R/W_N
X
[1]
Table 40:
Bit
7 to 1
0
I
2
C-bus slave address bit description
Symbol
Description
A[6:0]
Device address
: The device address of the ISP1109 is: 01 0110 (A0).
R/W_N
Read or write command.
0 —
write
1 —
read.
Table 41:
Byte
S
Device select
ACK
Register address K
ACK
Write data K
ACK
P
Transfer format description for a one-byte write
Description
master starts with a START condition
master transmits device address and write command bit R/W = 0
slave generates an acknowledgment
master transmits address of register K
slave generates an acknowledgment
master writes data to register K
slave generates an acknowledgment
master generates a STOP condition
Table 42:
Byte
S
Device select
ACK
Transfer format description for a multiple-byte write
Description
master starts with a START condition
master transmits device address and write command bit R/W = 0
slave generates an acknowledgment
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