HD404369 Datasheet, PDF (44/115 Pages) Hitachi Semiconductor – 4-bit HMCS400-Series microcomputer

HD404369 Series
Table 21 Programmable I/O Circuits
MIS3 (bit 3 of MIS)
0
1
DCD, DCR
0
1
0
1
PDR
0
1
0
1
0
1
0
1
CMOS buffer PMOS
—
—
—
On
—
—
—
On
NMOS
—
—
On
—
—
—
On
—
Pull-up MOS
—
—
—
—
—
On
—
On
Note: — indicates off status.
V_CC
V_CC
Pull-up
MOS
Pull-up control signal
HLT
MIS3
Buffer control signal
DCD, DCR
Output data
PDR
Input control signal
Figure 26 I/O Buffer Configuration
Input data
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