Renesas H8S/2368 Series Hardware Manual page 387

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P52/SCK2/IRQ2
The pin function is switched as shown below according to the combination of bit C/A in SMR of
SCI_2, bits CKE0 and CKE1 in SCR, bit ITS2 in ITSR, and bit P52DDR.
CKE1
C/A
CKE0
P52DDR
Pin function
Note: * IRQ2 input when ITS2 = 0.
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P51/RxD2/IRQ1
The pin function is switched as shown below according to the combination of bit RE in SCR of
SCI_2, bit ITS1 in ITSR, and bit P51DDR.
RE
P51DDR
Pin function
Note: * IRQ1 input when ITS1 = 0.
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P50/TxD2/IRQ0
The pin function is switched as shown below according to the combination of bit TE in SCR of
SCI_2, bit ITS0 in ITSR, and bit P50DDR.
TE
P50DDR
Pin function
Note: * IRQ0 input when ITS0 = 0.
0
0
0 1
P52 input P52 output
0
P51 input
0
P50 input
0
1
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SCK2 output
IRQ2 interrupt input*
0
1
P51 output
IRQ1 interrupt input*
0
1
P50 output
IRQ0 interrupt input*
Rev. 2.00, 05/03, page 335 of 820
1
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SCK2 output SCK2 input
1
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RxD2 input
1
—
TxD2 input
1
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