HD404818 Datasheet, PDF (47/100 Pages) Hitachi Semiconductor – 16-digit LCD driver

HD404818 Series
Table 20 Input/Output by Program Control
PMRB Bit 3
0
1
DCR
0
1
0
1
PDR
0
1
0
1
0
1
0
1
PMOS (A)
—
—
—
On
—
—
—
On
NMOS (B)
—
—
On
—
—
—
On
—
Pull-up MOS —
—
—
—
—
On
—
On
Notes: — indicates off status.
1. Combine the values of the above mode registers (PMRB3, DCR, and PDR) to select the
input/output for PMOS (A), NMOS (B), and the pull-up MOS, individually.
The DCR and PDR control each pin. Also, PMRB3 controls the on/off of all pull-up MOSs.
2. The second bit of the miscellaneous register (MIS2) controls R0₂/SO. When MIS2 is 1, PMOS
(A) is off.
MIS2
R0₂/SO
PMOS (A)
0
On
1
Off
3. Each bit of DCR corresponds to each port as follows:
DCR
Bit 3
Bit 2
Bit 1
Bit 0
DCR0
R0₃
R0₂
R0₁
R0₀
DCR1
R1₃
R1₂
R1₁
R1₀
DCR2
R2₃
R2₂
R2₁
R2₂
DCR3
R3₃
R3₂
R3₁
R3₀
DCRB
D₃
D₂
D₁
D₀
DCRC
D₇
D₆
D₅
D₄
DCRD
—
—
D₉
D₈
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