ISP1301BS,151 STEricsson, ISP1301BS,151 Datasheet - Page 27

• Manufacturer Part Number: ISP1301BS,151
• Manufacturer: STEricsson

Specifications of ISP1301BS,151

• Number Of Transceivers: 1
• Esd Protection: YeskV
• Operating Supply Voltage (typ): Not RequiredV
• Operating Temperature Classification: Industrial
• Operating Supply Voltage (max): Not RequiredV
• Operating Supply Voltage (min): Not RequiredV
• Mounting: Surface Mount
• Operating Temperature (max): 85C
• Operating Temperature (min): -40C
• Lead Free Status / RoHS Status: Supplier Unconfirmed

12. I
ISP1301_5
Product data sheet
2
C-bus protocol
12.3.1 One-byte write
12.1 I
12.2 I
12.3 Write format
For detailed information, refer to The I
Table 33.
[1]
[2]
[3]
Table 34.
[1]
Table 35.
A write operation can be performed as:
Figure 13
Table 36.
Bit
Symbol
Value
Bit
7 to 1
0
Byte
S
Device select
ACK
Register address K
ACK
2
2
•
•
C-bus byte transfer format
C-bus device address
S
[1]
S = Start.
A = Acknowledge.
P = Stop.
The value of A0 (LSB) is loaded from pin ADR/PSW during reset (including power-on reset). If pin
ADR/PSW = HIGH, bit A0 = 1; otherwise bit A0 = 0.
One-byte write to the specified register address.
Multi-byte write to N consecutive registers, starting from the specified start address. N
defines the number of registers to write. If N = 1, only the start register is written.
Symbol
A[6:0]
R/W_N
illustrates the byte sequence.
I
I
I
Transfer format description for one-byte write
Byte 1
2
2
2
8 bits
C-bus byte transfer format
C-bus device address byte 1 bit allocation
C-bus device address byte 1 bit description
A6
7
0
Description
Device address: The device address of the ISP1301 is: 01 0110 (A0).
Read or write command.
0 — write
1 — read
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
Rev. 05 — 2 September 2009
A5
A
6
1
[2]
Byte 2
8 bits
A4
5
0
2
C-bus specification; version 2.1.
A
A3
4
1
[2]
Byte 3
8 bits
A2
3
1
A
[2]
A1
2
0
USB OTG transceiver
© ST-ERICSSON 2009. All rights reserved.
..
..
ISP1301
A0
[1]
1
A
[2]
R/W_N
27 of 49
P
0
X
[3]