HD6475328-CP10 Datasheet, PDF (184/459 Pages) Hitachi Semiconductor – original Hitachi CMOS microcomputer unit (MCU)

P63 (input/output)
Port
P62 (input/output)
6
P61 (input/output)
P60 (input/output)
Figure 9-18 Port 6 Pin Functions in Modes 7, 2, and 1
9.7.4 Built-in MOS Pull-Up
Port 6 has programmable MOS input pull-ups which are turned on by clearing the corresponding
bit in P6DDR to “0” and writing a “1” in P6DR. These pull-ups are turned off at a reset and in the
hardware standby mode. Table 9-11 indicates the status of the MOS pull-ups in various modes.
Table 9-11 Status of MOS Pull-Ups for Port 5
Mode Reset Hardware Standby Mode
1
OFF
OFF
2
3
4
7
* Including the software standby mode.
Other Operating States*
ON/OFF
OFF
ON/OFF
Notation:
OFF:
ON/OFF:
The MOS pull-up is always off.
The MOS pull-up is on when P6DDR = 0 and P6DR = 1, and off otherwise.
Note: When using the built-in pull-ups, see the “Note on Usage of MOS Pull-Ups” in
section 9.6.4.
9.8 Port 7
9.8.1 Overview
Port 7 is an 8-bit input/output port with the pin configuration shown in figure 9-19. Its pins also
carry input and output signals for the on-chip free-running timers (FRT1, FRT2, and FRT3), and
two input signals for the on-chip 8-bit timer.
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