HD64F3028F25 Datasheet, PDF (337/925 Pages) Renesas Technology Corp – Hardware Manual Renesas 16-Bit Single-Chip Microcomputer H8 Family/H8/300H Series

Table 8.24 Port B Pin Functions (Modes 6 and 7)
Pin
PB7/TP15/
RxD2
Pin Functions and Selection Method
Bit RE in SCR of SCI2, bit SMIF in SCMR, bit NDER15 in NDERB, and bit
PB7DDR select the pin function as follows.
SMIF
0
1
RE
0
1
—
PB7DDR
NDER15
0
1
—
0
1
—
—
1
—
—
Pin function
PB7 input PB7 output TP15 output RxD2 input RxD2 input
PB6/TP14/
TxD2
PB5/TP13/
SCK2
Bit TE in SCR of SCI2, bit SMIF in SCMR, bit NDER14 in NDERB, and bit
PB6DDR select the pin function as follows.
SMIF
0
1
TE
0
1
—
PB6DDR
NDER14
0
1
—
0
1
—
—
1
—
—
Pin function
PB6 input PB6 output TP14 output TxD2 output TxD2
output^*
Note: * Functions as the TxD2 output pin, but there are two states: one in which
the pin is driven, and another in which the pin is at high-impedance.
Bit C/A in SMR of SCI2, bits CKE0 and CKE1 in SCR, bit NDER13 in NDERB,
and bit PB5DDR select the pin function as follows.
CKE1
0
1
C/A
0
1
—
CKE0
0
1
—
—
PB5DDR
NDER13
0
1
—
0
1
—
—
—
1
—
—
—
Pin function
PB5
input
PB5
output
TP13
output
SCK2
output
SCK2
output
SCK2
input
PB4/TP12
Bit NDER12 in NDERB and bit PB4DDR select the pin function as follows.
PB4DDR
0
1
1
NDER12
—
0
1
Pin function
PB4 input
PB4 output
TP12 output
Rev. 2.00, 09/03, page 305 of 890