Section 8 I/O Ports
Rev. 1.00 Mar. 12, 2008 Page 202 of 1178
REJ09B0403-0100
(4)
Noise Canceler Enable Register (P3NCE)
P3NCE enables or disables the noise canceler circuit at port 3.
Bit
Bit Name
Initial Value
R/W Description
7 P37NCE
0
R/W
6 P36NCE
0
R/W
5 P35NCE
0
R/W
4 P34NCE
0
R/W
3 P33NCE
0
R/W
2 P32NCE
0
R/W
1 P31NCE
0
R/W
0 P30NCE
0
R/W
•
Normal extended mode (ADMXE = 0)
The pins function as bidirectional data bus pins. Set
this register to 0.
•
Other modes
Enables the noise canceler circuit for the
corresponding pin and the pin state is fetched into
P3DR at the sampling cycle set by NCCS.
The operation changes according to the other
control bits.
(5)
Noise Canceler Mode Control Register (P3NCMC)
When the noise canceler is enabled, P3NCMC controls whether 1 or 0 is expected for the input
signal to port 3 in bit units.
Bit
Bit Name
Initial Value
R/W Description
7 P37NCMC
1
R/W
6 P36NCMC
1
R/W
5 P35NCMC
1
R/W
4 P34NCMC
1
R/W
3 P33NCMC
1
R/W
2 P32NCMC
1
R/W
1 P31NCMC
1
R/W
0 P30NCMC
1
R/W
•
Normal extended mode (ADMXE = 0)
This register has no effect on operation.
•
Other modes
1 expected: 1 is stored in the port data register
while 1 is input stably.
0 expected: 0 is stored in the port data register
while 0 is input stably.
Summary of Contents for H8S Family
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Page 70: ...Section 1 Overview Rev 1 00 Mar 12 2008 Page 22 of 1178 REJ09B0403 0100...
Page 108: ...Section 2 CPU Rev 1 00 Mar 12 2008 Page 60 of 1178 REJ09B0403 0100...
Page 116: ...Section 3 MCU Operating Modes Rev 1 00 Mar 12 2008 Page 68 of 1178 REJ09B0403 0100...
Page 152: ...Section 5 Interrupt Controller Rev 1 00 Mar 12 2008 Page 104 of 1178 REJ09B0403 0100...
Page 206: ...Section 6 Bus Controller BSC Rev 1 00 Mar 12 2008 Page 158 of 1178 REJ09B0403 0100...
Page 420: ...Section 9 14 Bit PWM Timer PWMX Rev 1 00 Mar 12 2008 Page 372 of 1178 REJ09B0403 0100...
Page 476: ...Section 12 Watchdog Timer WDT Rev 1 00 Mar 12 2008 Page 428 of 1178 REJ09B0403 0100...
Page 552: ...Section 14 CRC Operation Circuit CRC Rev 1 00 Mar 12 2008 Page 504 of 1178 REJ09B0403 0100...
Page 712: ...Section 18 I2 C Bus Interface IIC Rev 1 00 Mar 12 2008 Page 664 of 1178 REJ09B0403 0100...
Page 804: ...Section 19 LPC Interface LPC Rev 1 00 Mar 12 2008 Page 756 of 1178 REJ09B0403 0100...
Page 838: ...Section 20 Ethernet Controller EtherC Rev 1 00 Mar 12 2008 Page 790 of 1178 REJ09B0403 0100...
Page 964: ...Section 24 RAM Rev 1 00 Mar 12 2008 Page 916 of 1178 REJ09B0403 0100...
Page 1066: ...Section 25 Flash Memory Rev 1 00 Mar 12 2008 Page 1018 of 1178 REJ09B0403 0100...
Page 1098: ...Section 26 Boundary Scan JTAG Rev 1 00 Mar 12 2008 Page 1050 of 1178 REJ09B0403 0100...
Page 1226: ...Rev 1 00 Mar 12 2008 Page 1178 of 1178 REJ09B0403 0100...
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Page 1230: ...H8S 2472 Group H8S 2462 Group Hardware Manual...