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): 160/173頁
文件大?。?/td> 965K
代理商: 37C672
2-30
3802 GROUP USER’S MANUAL
APPLICATION
2.3 Serial I/O
2.3.3 Serial I/O connection examples
(1) Control of peripheral IC equipped with CS pin
There are connection examples using a clock synchronous serial I/O mode.
Figure 2.3.14 shows connection examples of a peripheral IC equipped with the CS pin.
Fig. 2.3.14 Serial I/O connection examples (1)
Port
SCLK
TXD
RXD
Port
CS
CLK
IN
OUT
CS
CLK
IN
OUT
(4) Connecting ICs
3802 group
Peripheral IC 1
Peripheral IC 2
Port
SCLK
TXD
CS
CLK
IN
OUT
(2) Transmission and reception
3802 group
Peripheral IC
(E PROM etc.)
2
(3) Transmission and reception
(Pins RXD and TXD are connected)
(Pins IN and OUT in peripheral IC
are connected)
CS
CLK
IN
OUT
3802 group
Peripheral IC
(E PROM etc.)
2
T2
“Port” is an output port controlled by software.
Use SOUT and SIN instead of TXD and RXD in the
serial I/O2.
Notes1:
2:
Port
SCLK
TXD
CS
CLK
DATA
(1) Only transmission
(using the RXD pin as an I/O port)
3802 group
Peripheral IC
(OSD controller etc.)
T1
T
1: Select an N-channel open-drain output control of TXD pin.
2: Use such OUT pin of peripheral IC as an N-channel open-
drain output in high impedance during receiving data.
Port
SCLK
TXD
RXD
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