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Section 8 I/O Ports
(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
PE7DDR
Pin function
[Legend]
X: Don't care.
• PE6/LCLK
The pin function is switched as shown below according to whether the LPC is enabled or
disabled and the PE6DDR bit.
LPC
PE6DDR
Pin function
[Legend]
X: Don't care.
• PE5/LRESET
The pin function is switched as shown below according to whether the LPC is enabled or
disabled and the PE5DDR bit.
LPC
PE5DDR
Pin function
[Legend]
X: Don't care.
Rev. 1.00 Mar. 12, 2008 Page 348 of 1178
REJ09B0403-0100
Disabled
0
PE7 input pin
Disabled
0
PE6 input pin
Disabled
0
PE5 input pin
1
PE7 output pin
1
PE6 output pin
1
PE5 output pin
Enabled
X
SERIRQ input/output pin
Enabled
X
LCLK input pin
Enabled
X
LRESET input pin
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