参数资料
型号: M38002E4FP
元件分类: 微控制器/微处理器
英文描述: 8-BIT, OTPROM, 8 MHz, MICROCONTROLLER, PQFP64
封装: 14 X 14 MM, PLASTIC, QFP-64
文件页数: 37/173页
文件大小: 4203K
代理商: M38002E4FP
3800 GROUP USER’S MANUAL
3-29
APPENDIX
3.5 List of registers
Fig. 3.5.3 Structure of Transmit/Receive buffer register
Fig. 3.5.4 Structure of Serial I/O status register
Transmit/Receive buffer register
b7 b6 b5 b4 b3 b2 b1 b0
B
Function
At reset
RW
0
1
2
3
4
6
7
Transmit/Receive buffer register (TB/RB) [Address : 1816]
A transmission data is written to or a receive data is read out
from this buffer register.
At writing : a data is written to the Transmit buffer register.
At reading : a content of the Receive buffer register is read out.
?
5
?
Note : A content of the Transmit buffer register cannot be read out.
A data cannot be written to the Receive buffer register.
b7 b6 b5 b4 b3 b2 b1 b0
B
Function
At reset
RW
0
1
2
3
4
5
6
7
0
1
Serial I/O status reigster (SIOSTS) [Address : 1916]
Name
Transmit buffer empty flag
(TBE)
0 : (OE)
(PE)
(FE) = 0
1 : (OE)
(PE)
(FE) = 1
Overrun error flag (OE)
0 : Buffer full
1 : Buffer empty
Nothing is allocated for this bit. It is a write disabled bit.
When this bit is read out, the value is “0.”
Receive buffer full flag (RBF)
Transmit shift register shift
completion flag (TSC)
Parity error flag (PE)
Framing error flag (FE)
Summing error flag (SE)
0 : Buffer empty
1 : Buffer full
0 : Transmit shift in progress
1 : Transmit shift completed
0 : No error
1 : Overrun error
0 : No error
1 : Parity error
0 : No error
1 : Framing error
!
Serial I/O status register
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