h8s-2158 Renesas Electronics Corporation., h8s-2158 Datasheet - Page 705
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h8s-2158
Manufacturer Part Number
h8s-2158
Description
Renesas 16-bit Single-chip Microcomputer H8s Family/h8s/2100 Series
Manufacturer
Renesas Electronics Corporation.
Datasheet
1.H8S-2158.pdf
(927 pages)
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19.3.15 Pin Mode Control Register (IOMCR)
IOMCR controls chip select pin operation in SPI mode and input/output direction output pin
operation in MMC mode.
Bit
7
6
5 to
2
1
Bit Name
SPCNUM
CHIPSA
—
DIRME
Initial Value
0
0
All 0
0
R/W
R/W
R/W
R
R/W
Description
Number of SPI Mode MMCs
Specifies whether one or two MMCs are to be
operated in SPI mode.
0: One MMC is connected to the MCCSA pin.
1: Maximum of two MMCs are connected to the
MMC Selection A/B
Specifies selection of two MMCs while
SPCNUM = 1.
0: Outputs CS signal from the MCCSA pin, and
1: Sets the MCCSA pin high (no selection), and
Reserved
These bits are always read as 0 and cannot be
modified.
Signal Direction Output Enable
Enables/disables the outputs of the
MCCMDDIR and MCDATDIR pins that output
the input/output direction of the MCCMD and
MCDAT pins, in MMC mode.
0: Disables MCCMDDIR pin and MCDATDIR
1: Enables MCCMDDIR pin and MCDATDIR
Section 19 Multimedia Card Interface (MCIF)
Disables MCCSB pin output.
MCCSA and MCCSB pins.
sets the MCCSB pin high (no selection).
outputs CS signal from the MCCSB pin.
pin outputs.
pin outputs.
Rev. 3.00 Jan 25, 2006 page 653 of 872
REJ09B0286-0300
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