參數(shù)資料
型號: GMS81524BQ
廠商: Hynix Semiconductor Inc.
元件分類: 8位微控制器
英文描述: 8-BIT SINGLE-CHIP MICROCONTROLLERS
中文描述: 8位單晶片微控制器
文件頁數(shù): 57/110頁
文件大?。?/td> 1980K
代理商: GMS81524BQ
GMS81508B/16B/24B, GMS82512/16/24
54
MAY. 2001 Ver 2.0
13.3 The method of Serial I/O
1. Select transmission/receiving mode.
2. In case of sending mode, write data to be send to SIOR.
3. Set SIOST to “1” to start serial transmission.
4. The SIO interrupt is generated at the completion of SIO
and SIOSF is set to “1”. In SIO interrupt service routine,
correct transmission should be tested.
5. In case of receiving mode, the received data is acquired
by reading the SIOR.
Note:
When external clock is used, the frequency should
be less than 1MHz and recommended duty is 50%. If both
transmission mode is selected and transmission is per-
formed simultaneously it would be made error.
13.4 The Method to Test Correct Transmission
Figure 13-4 Serial Method to Test Transmission
Serial I/O Interrupt
Service Routine
SE = 0
Write SIOM
Normal Operation
Overrun Error
Abnormal
SIOSF
0
1
- SE: Interrupt Enable Register Low IENL(Bit3)
- SR: Interrupt Request Flag Register Low IRQL(Bit3)
SR
0
1
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