參數(shù)資料
型號: 37C672
廠商: SMSC Corporation
英文描述: ENHANCED SUPER I/O CONTROLLER WITH FAST IR
中文描述: 增強(qiáng)的超級I / O控制器,快速紅外線
文件頁數(shù): 173/173頁
文件大?。?/td> 965K
代理商: 37C672
2.3 Serial I/O
2-42
APPLICATION
3802 GROUP USER’S MANUAL
Control procedure : When the registers are set as shown in Fig. 2.3.28, the Serial I/O2 can transmit
1-byte data simply by writing data to the Serial I/O2 register.
Thus, after setting the CS signal to “L,” write the transmission data to the Serial
I/O1 register on a 1-byte base, and return the CS signal to “H” when the desired
number of bytes have been transmitted.
Figure 2.3.30 shows a control procedure of serial I/O2.
Fig. 2.3.30 Control procedure of serial I/O2 [Output of serial data]
Complete to transmit data?
Set the Serial I/O2 control register.
Serial I/O2 interrupt : Disabled
Set the CS signal output port.
(“H” level output)
Set the CS signal output level to “L.”
Set the Serial I/O2 interrupt request bit to “0.”
Write a transmission data.
(start to transmit 1-byte data)
Check the completion of transmitting 1-
byte data.
Use any of RAM area as a counter for
counting the number of transmitted bytes.
Check that transmission of the target
number of bytes has been completed.
Return the CS signal output level to “H” when
transmission of the target number of bytes is
completed.
RESET
P5 (Address : 0A16), bit3
0
N
Y
1
IREQ2 (Address : 3D16), bit2?
IREQ2 (Address : 3D16), bit2
0
SIO2 (Address : 1F16)
P5 (Address : 0A16), bit3
1
a transmission
data
q
X : This bit is not used in this application.
Set it to “0” or “1.” It’s value can be disregarded.
q
Initialization
SIO2CON
ICON2
P5
P5D
....
(Address : 1D16)
(Address : 3F16), bit2
(Address : 0A16), bit3
(Address : 0B16)
010010102
XXXX1XXX2
q
0
1
相關(guān)PDF資料
PDF描述
37C67X ENHANCED SUPER I/O CONTROLLER WITH FAST IR
37C957FR ULTRA I/O CONTROLLER FOR PORTABLE APPLICATIONS
37FMA1-ABW31N SPECIAL SWITCH-PIEZO SWITCH, SPST, MOMENTARY, 0.2A, 24VDC, PANEL MOUNT-THREADED
37FML1-BEW31N SPECIAL SWITCH-PIEZO SWITCH, SPST, MOMENTARY, 0.2A, 24VDC, PANEL MOUNT-THREADED
37FML2-ACW21N SPECIAL SWITCH-PIEZO SWITCH, SPST, MOMENTARY, 1A, 24VDC, PANEL MOUNT-THREADED
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
37C67X 制造商:SMSC 制造商全稱:SMSC 功能描述:ENHANCED SUPER I/O CONTROLLER WITH FAST IR
37C-6BH-5-5 制造商:Birtcher Products 功能描述:
37C72U-185 制造商:White-Rodgers 功能描述:
37C73U-170 制造商:White-Rodgers 功能描述:
37C73U-171 制造商:White-Rodgers 功能描述: