Section 8 I/O Ports
Rev. 1.00 Mar. 12, 2008 Page 232 of 1178
REJ09B0403-0100
•
P84/
ExIRQ12
/SCK3
The pin function is switched as shown below according to the combination of the C/
A
bit in
SMR of SCI_3, the CKE1 and CKE0 bits in SCR, and the P84DDR bit.
When the ISS12 bit in ISSR16 is set to 1, this pin can be used as the
ExIRQ12
input pin. To
use this pin as the
ExIRQ12
input pin, clear the P84DDR bit to 0.
CKE1 0
1
C/
A
0
1
X
CKE0 0
1
X
X
P84DDR 0 1 X X X
P84 input pin
Pin function
ExIRQ12
input pin
P84 output
pin
SCK3 output
pin
SCK3 output
pin
SCK3 input
pin
[Legend] X: Don't care.
•
P83/SDA1
The pin function is switched as shown below according to the combination of the ICE bit in
ICCR of IIC_1 and the P83DDR bit.
When this pin is used as the P83 output pin, the output format is NMOS push-pull output. The
output format for SDA1 is NMOS open-drain output, which allows direct bus drive.
ICE 0 1
P83DDR 0
1
X
Pin function
P83 input pin
P83 output pin
SDA1 input/output pin
[Legend] X: Don't care.
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...