HD404344R Datasheet, PDF (49/102 Pages) Renesas Technology Corp – 4-bit microcomputer has an A/D converter

HD404344R Series/HD404394 Series
Serial mode register (SMR: $005)
Bit
Initial value
Read/Write
Bit name
3
0
W
SMR3
2
0
W
SMR2
1
0
W
SMR1
0
0
W
SMR0
SMR3
0
1
R0₀/SCK
Mode Selection
R0₀
SCK
SMR2
0
1
SMR1
0
1
0
1
SMR0
0
1
0
1
0
1
0
1
SCK
Prescaler
Clock Source Division Ratio
Output Prescaler
See table 22.
Output System clock —
Input External clock —
Figure 22 Serial Mode Register (SMR)
A/D mode register 1 (AMR1: $019)
Bit
Initial value
Read/Write
Bit name
3
0
W
AMR13
2
0
W
AMR12
1
0
W
AMR11
0
0
W
AMR10
AMR12
0
1
AMR13
0
1
R3₂/AN₂ Mode Selection
R3₂
AN₂
R3₃/AN₃ Mode Selection
R3₃
AN₃
AMR10*
0
1
R3₀/AN₀ Mode Selection
R3₀
AN₀
AMR11
0
1
R3₁/AN₁ Mode Selection
R3₁
AN₁
Note: * Available for the HD404344R series and HD4074344, but not available for the HD404394 series.
Figure 23 A/D Mode Register 1 (AMR1)
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