8. I/O Ports
Rev.3.00 Jul. 19, 2007 page 196 of 532
REJ09B0397-0300
8.5.3 Pin
Functions
Table 8.12 shows the port 4 pin functions.
Table 8.12 Port 4 Pin Functions
Pin
Pin Functions and Selection Method
P4
3
/
IRQ
0
The pin function depends on the IRQ0 bit setting in PMR2.
IRQ0
0
1
Pin
function
P4
3
input pin
IRQ
0
input pin
P4
2
/TXD
The pin function depends on bit TE in SCR3 and bit PCR4
2
in PCR4.
TE
0
1
PCR4
2
0
1
*
Pin
function
P4
2
input pin P4
2
output pin
TXD output pin
P4
1
/RXD
The pin function depends on bit RE in SCR3 and bit PCR4
1
in PCR4.
RE
0
1
PCR4
1
0
1
*
Pin
function
P4
1
input pin P4
1
output pin
RXD input pin
P4
0
/SCK
3
The pin function depends on bits CKE1 and CKE0 in SCR3, bit COM in SMR,
and bit PCR4
0
in PCR4.
CKE1
0
1
CKE0
0
1
*
COM
0 1
*
*
PCR4
0
0
1
*
*
Pin
function
P4
0
input
pin
P4
0
output
pin
SCK
3
output
pin
SCK
3
input
pin
Legend:
*
Don't care
Содержание F-ZTAT H8 Series
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Страница 194: ...7 RAM Rev 3 00 Jul 19 2007 page 168 of 532 REJ09B0397 0300...
Страница 234: ...8 I O Ports Rev 3 00 Jul 19 2007 page 208 of 532 REJ09B0397 0300...
Страница 274: ...9 Timers Rev 3 00 Jul 19 2007 page 248 of 532 REJ09B0397 0300...
Страница 352: ...12 A D Converter Rev 3 00 Jul 19 2007 page 326 of 532 REJ09B0397 0300...
Страница 466: ...16 Electrical Characteristics H8 3854 Group Rev 3 00 Jul 19 2007 page 440 of 532 REJ09B0397 0300...
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