Hitachi H8S/2646 Hardware Manual page 668

Hitachi 16-bit single-chip microcomputer h8s/2646 series
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• H8S/2648, H8S/2648R, H8S/2647
Bit 3:
Bit 2:
Bit 1:
Bit 0:
SGS3
SGS2
SGS1
SGS0
0
0
0
0
1
1
0
1
1
0
0
1
1
0
1
1
*
*
0
1
Note: When using external expansion, set a value of 0000 for SGS3 to SGS0. When the setting of
SGS3 to SGS0 is 0000, COM4 to COM1 also function as ports.
636
Function of Pins SEG40 to SEG1
SEG40
SEG32
SEG28
SEG24
to
to
to
to
SEG33
SEG29
SEG25
SEG21
Port
Port
Port
Port
Port
Port
Port
SEG
Port
Port
SEG
SEG
Port
SEG
SEG
SEG
SEG
SEG
SEG
SEG
SEG
SEG
SEG
SEG
SEG
SEG
SEG
SEG
SEG
SEG
SEG
SEG
SEG
SEG
SEG
SEG
SEG
SEG
SEG
SEG
SEG20
SEG16
SEG12
SEG8
to
to
to
to
SEG17
SEG13
SEG9
SEG5
Port
Port
Port
Port
Port
Port
Port
Port
Port
Port
Port
Port
Port
Port
Port
Port
Port
Port
Port
Port
Port
Port
Port
SEG
Port
Port
SEG
SEG
Port
SEG
SEG
SEG
SEG
SEG
SEG
SEG
SEG
SEG
SEG
SEG
SEG4
to
SEG1 Notes
Port
Initial value (external
expansion enabled)
Port
External expansion
not possible
Port
Port
Port
Port
Port
Port
Port
SEG
*: Don't care

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