Section 8
I/O Ports
Rev. 1.00 Mar. 12, 2008 Page 263 of 1178
REJ09B0403-0100
(3)
Port E Input Data Register (PEPIN)
PEPIN indicates the pin states of port E.
Bit
Bit Name
Initial Value
R/W Description
7 PE7PIN Undefined
*
R
6 PE6PIN Undefined
*
R
5 PE5PIN Undefined
*
R
4 PE4PIN Undefined
*
R
3 PE3PIN Undefined
*
R
2 PE2PIN Undefined
*
R
1 PE1PIN Undefined
*
R
0 PE0PIN Undefined
*
R
When this register is read, the pin states are read.
Since this register is allocated to the same address as
PEDDR, writing to this register writes data to PEDDR
and the port E setting is changed.
Note: The initial value of these pins is determined in accordance with the state of pins PE7 to
PE0.
(4)
Pin Functions
Port E pins can also function as LPC input/output pins. The pin function is switched according to
whether the LPC module is enabled or disabled. The LPC is disabled when all of the bits LPC1E,
LPC2E, and LPC3E in HICR0 and SCIFE in HICR5 are cleared to 0.
•
PE7/
SERIRQ
The pin function is switched as shown below according to whether the LPC is enabled or
disabled and the PE7DDR bit.
LPC Disabled
Enabled
PE7DDR 0
1
X
Pin function
PE7 input pin
PE7 output pin
SERIRQ input/output pin
[Legend]
X: Don't care.
Summary of Contents for H8S Family
Page 2: ...Rev 1 00 Mar 12 2008 Page ii of xIviii...
Page 8: ...Rev 1 00 Mar 12 2008 Page viii of xIviii...
Page 28: ...Rev 1 00 Mar 12 2008 Page xxviii of xIviii...
Page 48: ...Rev 1 00 Mar 12 2008 Page xlviii of xIviii...
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...
Page 1229: ......
Page 1230: ...H8S 2472 Group H8S 2462 Group Hardware Manual...