TOOLSTICK542PP Silicon Laboratories Inc, TOOLSTICK542PP Datasheet - Page 187
TOOLSTICK542PP
Manufacturer Part Number
TOOLSTICK542PP
Description
PLATFORM PROG TOOLSTICK F542
Manufacturer
Silicon Laboratories Inc
Series
ToolStickr
Type
Microcontroller Programmerr
Specifications of TOOLSTICK542PP
Contents
2 Boards and USB Connecting Cable
Processor To Be Evaluated
C8051F542
Interface Type
USB
Operating Supply Voltage
2.7 V to 3.6 V
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
For Use With/related Products
C8051F542
Lead Free Status / Rohs Status
Lead free / RoHS Compliant
Other names
336-1718
- Current page: 187 of 274
- Download datasheet (3Mb)
20. SMBus
The SMBus I/O interface is a two-wire, bi-directional serial bus. The SMBus is compliant with the System
Management Bus Specification, version 1.1, and compatible with the I2C serial bus. Reads and writes to
the interface by the system controller are byte oriented with the SMBus interface autonomously controlling
the serial transfer of the data. Data can be transferred at up to 1/20th of the system clock as a master or
slave (this can be faster than allowed by the SMBus specification, depending on the system clock used). A
method of extending the clock-low duration is available to accommodate devices with different speed
capabilities on the same bus.
The SMBus interface may operate as a master and/or slave, and may function on a bus with multiple mas-
ters. The SMBus provides control of SDA (serial data), SCL (serial clock) generation and synchronization,
arbitration logic, and START/STOP control and generation. A block diagram of the SMBus peripheral and
the associated SFRs is shown in Figure 20.1.
M
A
S
T
E
R
Interrupt
Request
M
O
D
T
X
E
SMB0CN
S
T
A
S
O
T
Q
A
C
K
R
A
R
B
O
S
L
T
C
A
K
S
I
Arbitration
SCL Synchronization
SCL Generation (Master Mode)
SDA Control
IRQ Generation
SMBUS CONTROL LOGIC
M
E
N
S
B
Figure 20.1. SMBus Block Diagram
N
H
I
SMB0CF
B
U
S
Y
E
X
H
O
D
T
L
M
O
S
B
T
E
M
S
B
F
T
E
M
C
S
B
S
1
7
M
S
B
C
S
0
6
Data Path
SMB0DAT
5
Control
4
3
Rev. 1.1
2
1
0
00
01
10
11
Control
SDA
Control
SCL
T0 Overflow
T1 Overflow
TMR2H Overflow
TMR2L Overflow
FILTER
FILTER
N
N
SDA
SCL
C
R
O
S
S
B
A
R
C8051F54x
Port I/O
187
Related parts for TOOLSTICK542PP
Image
Part Number
Description
Manufacturer
Datasheet
Request
R
Part Number:
Description:
KIT TOOL EVAL SYS IN A USB STICK
Manufacturer:
Silicon Laboratories Inc
Datasheet:
Part Number:
Description:
TOOLSTICK DEBUG ADAPTER
Manufacturer:
Silicon Laboratories Inc
Datasheet:
Part Number:
Description:
TOOLSTICK BASE ADAPTER
Manufacturer:
Silicon Laboratories Inc
Datasheet:
Part Number:
Description:
TOOLSTICK DAUGHTER CARD
Manufacturer:
Silicon Laboratories Inc
Datasheet:
Part Number:
Description:
TOOLSTICK DAUGHTER CARD
Manufacturer:
Silicon Laboratories Inc
Datasheet:
Part Number:
Description:
TOOLSTICK DAUGHTER CARD
Manufacturer:
Silicon Laboratories Inc
Datasheet:
Part Number:
Description:
TOOLSTICK DAUGHTER CARD
Manufacturer:
Silicon Laboratories Inc
Datasheet:
Part Number:
Description:
KIT STARTER TOOLSTICK
Manufacturer:
Silicon Laboratories Inc
Datasheet:
Part Number:
Description:
KIT UNIVERSITY TOOLSTICK STARTER
Manufacturer:
Silicon Laboratories Inc
Datasheet:
Part Number:
Description:
DAUGHTER CARD TOOLSTICK F330
Manufacturer:
Silicon Laboratories Inc
Datasheet:
Part Number:
Description:
CARD DAUGHTER UNIVRSTY TOOLSTICK
Manufacturer:
Silicon Laboratories Inc
Datasheet:
Part Number:
Description:
DAUGHTER CARD TOOLSTICK F582
Manufacturer:
Silicon Laboratories Inc
Datasheet:
Part Number:
Description:
DAUGHTER CARD TOOLSTICK F500
Manufacturer:
Silicon Laboratories Inc
Datasheet:
Part Number:
Description:
DAUGHTER CARD TOOLSTICK F540
Manufacturer:
Silicon Laboratories Inc
Datasheet:
Part Number:
Description:
DAUGHTER CARD TOOLSTICK F560
Manufacturer:
Silicon Laboratories Inc
Datasheet: