參數(shù)資料
型號: HD4074829
廠商: Hitachi,Ltd.
英文描述: AS Microcomputer Incorporating a LCD controller/Driver Circuit(帶LCD控制/驅(qū)動電路的微計算機(jī))
中文描述: 由于微機(jī)安裝有LCD控制器/驅(qū)動電路(帶液晶控制/驅(qū)動電路的微計算機(jī))
文件頁數(shù): 90/147頁
文件大小: 519K
代理商: HD4074829
HD404829R Series
90
Bit
Initial value
Read/Write
Bit name
3
0
W
SMRA3
2
0
W
SMRA2
0
0
W
SMRA0
1
0
W
SMRA1
Serial mode register A (SMRA: $005)
0
1
0
1
0
1
0
1
0
1
0
1
0
1
SMRA2
SMRA0
SMRA1
SMRA3
0
1
R2
1
/
SCK
mode selection
R2
1
SCK
Output
Output
Input
Clock source
Prescaler
division ratio
Refer to
table 23
SCK
Prescaler
System clock
External clock
Figure 74 Serial Mode Register A (SMRA)
Serial Mode Register B (SMRB: $028):
This register has the following functions (figure 75).
Prescaler division ratio selection
Output level control in idle states
Serial mode register B is a 2-bit write-only register. It cannot be written during data transfer.
By setting bit 0 (SMRB0) of this register, the prescaler division ratio is selected. Only bit 0 (SMRB0) can
be reset to 0 by MCU reset. By setting bit 1 (SMRB1), the output level of the SO pin is controlled in idle
states. The output level changes at the same time that SMRB1 is written to.
相關(guān)PDF資料
PDF描述
HD404828R AS Microcomputer Incorporating a LCD controller/Driver Circuit(帶LCD控制/驅(qū)動電路的微計算機(jī))
HD404829R AS Microcomputer Incorporating a LCD controller/Driver Circuit(帶LCD控制/驅(qū)動電路的微計算機(jī))
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