参数资料
型号: TOOLSTICK300SPP
厂商: Silicon Laboratories Inc
文件页数: 15/178页
文件大小: 0K
描述: TOOLSTICK PROGRAMMING ADAPTER
标准包装: 1
系列: ToolStick
类型: 微控制器编程器
适用于相关产品: C8051F300
所含物品: 2 个板和 USB 连接线缆
Rev. 2.9
111
C8051F300/1/2/3/4/5
13. SMBus
The SMBus I/O interface is a two-wire bidirectional 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 operating as
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 differ-
ent 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. Three SFRs are associated with the SMBus:
SMB0CF configures the SMBus; SMB0CN controls the status of the SMBus; and SMB0DAT is the data
register, used for both transmitting and receiving SMBus data and slave addresses.
Data Path
Control
SMBUS CONTROL LOGIC
C
R
O
S
B
A
R
SCL
FILTER
N
SDA
Control
SCL
Control
Arbitration
SCL Synchronization
IRQ Generation
SCL Generation (Master Mode)
SDA Control
Interrupt
Request
Port I/O
SMB0CN
S
T
A
C
K
R
Q
A
R
B
L
O
S
T
A
C
K
S
I
T
X
M
O
D
E
M
A
S
T
E
R
S
T
O
01
00
10
11
T0 Overflow
T1 Overflow
TMR2H Overflow
TMR2L Overflow
SMB0CF
E
N
S
M
B
I
N
H
B
U
S
Y
E
X
T
H
O
L
D
S
M
B
T
O
E
S
M
B
F
T
E
B
A
U
D
1
B
A
U
D
0
1
2
3
4
5
6
7
SMB0DAT
SDA
FILTER
N
Figure 13.1. SMBus Block Diagram
相关PDF资料
PDF描述
396-070-541-804 CARD EDGE 70POS DL .125X.250 BLK
TOOLSTICK588PP PLATFORM PROG TOOLSTICK F588
EEM22DRKH-S13 CONN EDGECARD 44POS .156 EXTEND
396-070-541-802 CARD EDGE 70POS DL .125X.250 BLK
T95Y476K6R3LSAL CAP TANT 47UF 6.3V 10% 2910
相关代理商/技术参数
参数描述
TOOLSTICK310PP 功能描述:插座和适配器 C8051F310/12/14 F361 F364 F366 F368 RoHS:否 制造商:Silicon Labs 产品:Adapter 用于:EM35x
TOOLSTICK311DC 功能描述:子卡和OEM板 ToolStick C8051F311 Daughter Card RoHS:否 制造商:BeagleBoard by CircuitCo 产品:BeagleBone LCD4 Boards 用于:BeagleBone - BB-Bone - Open Source Development Kit
TOOLSTICK311PP 功能描述:插座和适配器 C8051F311/13/15 F362 F365 F367 F369 RoHS:否 制造商:Silicon Labs 产品:Adapter 用于:EM35x
TOOLSTICK316PP 功能描述:插座和适配器 C8051F316/17 F338 F339 RoHS:否 制造商:Silicon Labs 产品:Adapter 用于:EM35x
TOOLSTICK320PP 功能描述:插座和适配器 Dev Tool C8051F320 F342 F343 F346 F347 RoHS:否 制造商:Silicon Labs 产品:Adapter 用于:EM35x