Section 8 I/O Ports
Rev. 1.00 Mar. 12, 2008 Page 298 of 1178
REJ09B0403-0100
(2)
Port 5 Data Register (P5DR)
P5DR stores output data for the port 5 pins.
Bit
Bit Name
Initial Value
R/W Description
7 P57DR 0
R/W
6 P56DR Undefined
*
R
5 P55DR 0
R/W
4 P54DR 0
R/W
3 P53DR 0
R/W
2 P52DR 0
R/W
1 P51DR 0
R/W
0 P50DR 0
R/W
P5DR stores output data for the port 5 pins that are
used as the general output port.
If this register is read, the P5DR values are read for
the bits with the corresponding P5DDR bits set to 1.
For the bits with the corresponding P5DDR bits
cleared to 0, the pin states are read.
Note:
*
The initial value is determined in accordance with the pin state of P56.
(3)
Pin Functions
(a)
Normal Extended Mode and Address-Data Multiplex Extended Mode
Port pin 57 is automatically set to function as a bus control output pin. The functions of port pins
56 to 50 are the same as those in single-chip mode.
(b)
Single-Chip Mode
Port 5 pins can operate as the SCIF, SCI_1, and SSU input/output, noise canceler input, or general
I/O port pins. The relationship between register setting values and pin functions are as follows.
•
P57
The pin function is switched as shown below according to the P57DDR bit.
P57DDR 0
1
Pin function
P57 input pin
P57 output pin
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...
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Page 1230: ...H8S 2472 Group H8S 2462 Group Hardware Manual...