h8s-2635 Renesas Electronics Corporation., h8s-2635 Datasheet - Page 325
h8s-2635
Manufacturer Part Number
h8s-2635
Description
Renesas 16-bit Single-chip Microcomputer H8s Family/h8s/2600 Series
Manufacturer
Renesas Electronics Corporation.
Datasheet
1.H8S-2635.pdf
(1547 pages)
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9.7.4
Port B has an on-chip MOS input pull-up function that can be controlled by software. MOS input
pull-up can be specified as on or off on an individual bit basis.
In modes 4 to 6, if a pin is in the input state in accordance with the settings in PFCR, in the TPU’s
TIOR, and in DDR, setting the corresponding PBPCR bit to 1 turns on the MOS input pull-up for
that pin.
In mode 7, if a pin is in the input state in accordance with the settings in the TPU’s TIOR and in
DDR, setting the corresponding PBPCR bit to 1 turns on the MOS input pull-up for that pin.
The MOS input pull-up function is in the off state after a reset, and in hardware standby mode.
The prior state is retained by a manual reset or in software standby mode.
Table 9-12 summarizes the MOS input pull-up states.
Table 9-12 MOS Input Pull-Up States (Port B)
Legend:
OFF:
ON/OFF: On when PBDDR = 0 and PBPCR = 1; otherwise off.
Pin States
Address output or
TPU output
Other than above
MOS Input Pull-Up Function
MOS input pull-up is always off.
Reset
OFF
Hardware
Standby Mode
OFF
Rev. 6.00 Feb 22, 2005 page 265 of 1484
Software
Standby Mode
OFF
ON/OFF
Section 9 I/O Ports
In Other
Operations
OFF
ON/OFF
REJ09B0103-0600
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