Section 8 I/O Ports
Rev. 1.00 Mar. 12, 2008 Page 324 of 1178
REJ09B0403-0100
(4)
Pin Functions
The relationship between the operating mode, register setting values, and pin functions are as
follows.
(a)
Normal Extended Mode
Port A pins can function as address output, interrupt input, event counter input, EtherC control
input/output, or I/O port pins, and input or output can be specified in bit units.
Address 18 and address 13 in the following tables are expressed by the following logical
expressions according to the control bits of the bus controller or other module.
Address 18 = 1:
ADFULLE
Address 13 = 1:
ADFULLE
•
CS256E
•
IOSE
•
PA7/
ExIRQ7
/EVENT7/A23/EXOUT
The pin function is switched as shown below according to the setting of address 18 and the
PA7DDR bit.
Setting the ISS7 bit in ISSR makes the pin to function as the
ExIRQ7
input pin.
When using the pin as the
ExIRQ7
input or an EVENT input pin, clear the PA7DDR bit to 0.
Though the settings for the EVENT input pin have been made, set the PA7DDR bit to 1 when
using the pin as the PA7 or A23 output pin.
When the module stop mode is cleared in both the EtherC and E-DMAC, this pin functions as
the EXOUT output pin.
PA7DDR
0
1
1
Address 18
X
1
0
PA7 input pin
Pin function
ExIRQ7
input pin/EVENT7 input pin
PA7 output pin
A23 output pin
[Legend] X: Don't care.
Содержание H8S Family
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Страница 108: ...Section 2 CPU Rev 1 00 Mar 12 2008 Page 60 of 1178 REJ09B0403 0100...
Страница 116: ...Section 3 MCU Operating Modes Rev 1 00 Mar 12 2008 Page 68 of 1178 REJ09B0403 0100...
Страница 152: ...Section 5 Interrupt Controller Rev 1 00 Mar 12 2008 Page 104 of 1178 REJ09B0403 0100...
Страница 206: ...Section 6 Bus Controller BSC Rev 1 00 Mar 12 2008 Page 158 of 1178 REJ09B0403 0100...
Страница 420: ...Section 9 14 Bit PWM Timer PWMX Rev 1 00 Mar 12 2008 Page 372 of 1178 REJ09B0403 0100...
Страница 476: ...Section 12 Watchdog Timer WDT Rev 1 00 Mar 12 2008 Page 428 of 1178 REJ09B0403 0100...
Страница 552: ...Section 14 CRC Operation Circuit CRC Rev 1 00 Mar 12 2008 Page 504 of 1178 REJ09B0403 0100...
Страница 588: ...Section 15 Serial Communication Interface with FIFO SCIF Rev 1 00 Mar 12 2008 Page 540 of 1178 REJ09B0403 0100...
Страница 632: ...Section 17 Synchronous Serial Communication Unit SSU Rev 1 00 Mar 12 2008 Page 584 of 1178 REJ09B0403 0100...
Страница 712: ...Section 18 I2 C Bus Interface IIC Rev 1 00 Mar 12 2008 Page 664 of 1178 REJ09B0403 0100...
Страница 804: ...Section 19 LPC Interface LPC Rev 1 00 Mar 12 2008 Page 756 of 1178 REJ09B0403 0100...
Страница 838: ...Section 20 Ethernet Controller EtherC Rev 1 00 Mar 12 2008 Page 790 of 1178 REJ09B0403 0100...
Страница 964: ...Section 24 RAM Rev 1 00 Mar 12 2008 Page 916 of 1178 REJ09B0403 0100...
Страница 1066: ...Section 25 Flash Memory Rev 1 00 Mar 12 2008 Page 1018 of 1178 REJ09B0403 0100...
Страница 1098: ...Section 26 Boundary Scan JTAG Rev 1 00 Mar 12 2008 Page 1050 of 1178 REJ09B0403 0100...
Страница 1168: ...Section 30 Platform Environment Control Interface PECI Rev 1 00 Mar 12 2008 Page 1120 of 1178 REJ09B0403 0100...
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Страница 1230: ...H8S 2472 Group H8S 2462 Group Hardware Manual...