HD6475328-CP10 HITACHI [Hitachi Semiconductor], HD6475328-CP10 Datasheet - Page 184

• Manufacturer Part Number: HD6475328-CP10
• Description: original Hitachi CMOS microcomputer unit (MCU)
• Manufacturer: HITACHI [Hitachi Semiconductor]

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
1
2
3
4
7
* Including the software standby mode.
Notation:
OFF:
ON/OFF:
Note: When using the built-in pull-ups, see the “Note on Usage of MOS Pull-Ups” in
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.
section 9.6.4.
Reset
OFF
The MOS pull-up is always off.
The MOS pull-up is on when P6DDR = 0 and P6DR = 1, and off otherwise.
Figure 9-18 Port 6 Pin Functions in Modes 7, 2, and 1
Hardware Standby Mode
OFF
Port
6
P6
P6
P6
P6
3
2
1
0
(input/output)
(input/output)
(input/output)
(input/output)
167
Other Operating States*
OFF
ON/OFF
ON/OFF