Rev. 5.00, 12/03, page 245 of 1088
8.4.3
Pin Functions
Port 3 pins also function as SCI I/O pins (TxD0, RxD0, SCK0, TxD1, RxD1, and SCK1) and
interrupt input pins (
IRQ4
,
IRQ5
). Port 3 pin functions are shown in table 8-7.
Table 8-7
Port 3 Pin Functions
Pin
Selection Method and Pin Functions
P35/SCK1/
IRQ5
The pin function is switched as shown below according to the combination of
bit C/
A
in the SCI1 SMR, bits CKE0 and CKE1 in SCR, and bit P35DDR.
CKE1
0
1
C/
A
0
1
—
CKE0
0
1
—
—
P35DDR
0
1
—
—
—
Pin function
P35
input pin
P35
output pin
*
1
SCK1
output pin
*
1
SCK1
output pin
*
1
SCK1
input pin
IRQ5
interrupt input pin
*
2
Notes: 1. When P35ODR = 1, the pin becomes an NMOS open-drain output.
2. When this pin is used as an external interrupt input, it should not be
used as an input/output pin with other functions.
P34/SCK0/
IRQ4
The pin function is switched as shown below according to the combination of
bit C/
A
in the SCI0 SMR, bits CKE0 and CKE1 in SCR, and bit P34DDR.
CKE1
0
1
C/
A
0
1
—
CKE0
0
1
—
—
P34DDR
0
1
—
—
—
Pin function
P34
input pin
P34
output pin
*
1
SCK0
output pin
*
1
SCK0
output pin
*
1
SCK0
input pin
IRQ4
interrupt input pin
*
2
Notes: 1. When P34ODR = 1, the pin becomes an NMOS open-drain output.
2. When this pin is used as an external interrupt input, it should not be
used as an input/output pin with other functions.
Содержание H8S/2318 series
Страница 2: ......
Страница 6: ...Rev 5 00 12 03 page vi of xxx...
Страница 12: ...Rev 5 00 12 03 page xii of xxx...
Страница 30: ...Rev 5 00 12 03 page xxx of xxx...
Страница 54: ...Rev 5 00 12 03 page 24 of 1088...
Страница 98: ...Rev 5 00 12 03 page 68 of 1088...
Страница 128: ...Rev 5 00 12 03 page 98 of 1088...
Страница 138: ...Rev 5 00 12 03 page 108 of 1088...
Страница 168: ...Rev 5 00 12 03 page 138 of 1088...
Страница 212: ...Rev 5 00 12 03 page 182 of 1088...
Страница 324: ...Rev 5 00 12 03 page 294 of 1088...
Страница 436: ...Rev 5 00 12 03 page 406 of 1088...
Страница 546: ...Rev 5 00 12 03 page 516 of 1088...
Страница 580: ...Rev 5 00 12 03 page 550 of 1088...
Страница 822: ...Rev 5 00 12 03 page 792 of 1088...
Страница 876: ...Rev 5 00 12 03 page 846 of 1088...
Страница 901: ...Rev 5 00 12 03 page 871 of 1088 A 2 Instruction Codes Table A 2 shows the instruction codes...
Страница 1121: ...H8S 2319 Group H8S 2318 Group Hardware Manual REJ09B0089 0500O...