Port A Input Pull-Up Mos Function; Port B; Table 9.26 Input Pull-Up Mos States (Port A) - Hitachi H8S/2215 Series Hardware Manual

9.6.7

Port A Input Pull-Up MOS Function

Port A has a built-in input pull-up MOS function that can be controlled by software. Input pull-up
MOS can be specified as on or off for individual bits.
Table 9.26 summarizes the input pull-up MOS states.

Table 9.26 Input Pull-Up MOS States (Port A)

Pins
Address output, port
output, SCI output
Port input, SCI input
Legend:
OFF: Input pull-up MOS is always off.
ON/OFF: On when PADDR = 0 and PAPCR = 1; otherwise off.
9.7

Port B

Port B is an 8-bit I/O port that also has address bus output. The port B has the following registers.
Internal I/O Register.
• Port B data direction register (PBDDR)
• Port B data register (PBDR)
• Port B register (PORTB)
• Port B MOS pull-up control register (PBPCR)
Power-On Hardware
Reset Standby
Mode
OFF
Manual Software
Reset Standby
Mode
OFF
ON/OFF
Rev. 3.0, 10/02, page 237 of 686
In Other
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